<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:66d65cc2-4fa4-4832-ae71-ae8f19da1252,g:1f1fb933-bb13-465e-94fe-77dd56c713da-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.ghco.com/role/CondensedConsolidatedStatementsofOperationsUnaudited" xlink:type="simple" xlink:href="ghc-20250930.xsd#CondensedConsolidatedStatementsofOperationsUnaudited"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/CondensedConsolidatedStatementsofOperationsUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_13c61a9a-33cf-4196-9831-dc63c69d03f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_d30adeed-4b1f-4005-8714-89f4fd09562d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_13c61a9a-33cf-4196-9831-dc63c69d03f7" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_d30adeed-4b1f-4005-8714-89f4fd09562d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_eaa229c0-4950-4af0-964f-ee40d07acbae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_13c61a9a-33cf-4196-9831-dc63c69d03f7" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_eaa229c0-4950-4af0-964f-ee40d07acbae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0b99e1b9-0c66-4048-a44d-b5cb838accc1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_5808a0b0-d27c-4471-bc91-e78855e165c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0b99e1b9-0c66-4048-a44d-b5cb838accc1" xlink:to="loc_us-gaap_OperatingIncomeLoss_5808a0b0-d27c-4471-bc91-e78855e165c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_c102aa1c-74f3-44ac-98e9-ce0ba1c8864d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0b99e1b9-0c66-4048-a44d-b5cb838accc1" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_c102aa1c-74f3-44ac-98e9-ce0ba1c8864d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_e3790241-ae16-4c64-93b2-fad5f5ebf096" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0b99e1b9-0c66-4048-a44d-b5cb838accc1" xlink:to="loc_us-gaap_InvestmentIncomeInterest_e3790241-ae16-4c64-93b2-fad5f5ebf096" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_84eb523d-fa7c-4eb1-a880-956deb113920" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0b99e1b9-0c66-4048-a44d-b5cb838accc1" xlink:to="loc_us-gaap_InterestExpenseNonoperating_84eb523d-fa7c-4eb1-a880-956deb113920" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_e347154f-227b-40a9-a21b-746d76399cc8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0b99e1b9-0c66-4048-a44d-b5cb838accc1" xlink:to="loc_us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_e347154f-227b-40a9-a21b-746d76399cc8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiGainLoss_7aefc601-2361-496d-9e9d-2e1c5387d883" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNiGainLoss"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0b99e1b9-0c66-4048-a44d-b5cb838accc1" xlink:to="loc_us-gaap_EquitySecuritiesFvNiGainLoss_7aefc601-2361-496d-9e9d-2e1c5387d883" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_a137a184-8a28-4a93-9169-08133c713164" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0b99e1b9-0c66-4048-a44d-b5cb838accc1" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_a137a184-8a28-4a93-9169-08133c713164" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_cbef1ec6-de56-4524-a642-be0f3589c203" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_0c880381-35a7-4e02-abc0-1c673660e47b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_cbef1ec6-de56-4524-a642-be0f3589c203" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_0c880381-35a7-4e02-abc0-1c673660e47b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_f9e84db1-abc5-46a9-b6b8-d2d7b5edff08" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_cbef1ec6-de56-4524-a642-be0f3589c203" xlink:to="loc_us-gaap_CostsAndExpenses_f9e84db1-abc5-46a9-b6b8-d2d7b5edff08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_44d850ad-91aa-4b97-b883-9c2e7d365000" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization_5caaf322-61eb-4c41-a36a-410226b9c7a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_44d850ad-91aa-4b97-b883-9c2e7d365000" xlink:to="loc_us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization_5caaf322-61eb-4c41-a36a-410226b9c7a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_SellingGeneralandAdministrativeExpenses_a74fd1ee-2332-42ff-bae8-576224ec2661" xlink:href="ghc-20250930.xsd#ghc_SellingGeneralandAdministrativeExpenses"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_44d850ad-91aa-4b97-b883-9c2e7d365000" xlink:to="loc_ghc_SellingGeneralandAdministrativeExpenses_a74fd1ee-2332-42ff-bae8-576224ec2661" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_672a5bd5-853b-43d6-833b-d74e7a567845" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depreciation"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_44d850ad-91aa-4b97-b883-9c2e7d365000" xlink:to="loc_us-gaap_Depreciation_672a5bd5-853b-43d6-833b-d74e7a567845" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_93abe472-cd4b-4ec9-93cf-5289d98e0e8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_44d850ad-91aa-4b97-b883-9c2e7d365000" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_93abe472-cd4b-4ec9-93cf-5289d98e0e8a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_b0b7d088-3877-499e-90d6-1846c2abf199" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_44d850ad-91aa-4b97-b883-9c2e7d365000" xlink:to="loc_us-gaap_AssetImpairmentCharges_b0b7d088-3877-499e-90d6-1846c2abf199" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_6ebc1ebe-4054-4356-9974-19e9ef64ec1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_f266b4d7-ca81-4e67-888d-af5d8375ad20" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_6ebc1ebe-4054-4356-9974-19e9ef64ec1b" xlink:to="loc_us-gaap_ProfitLoss_f266b4d7-ca81-4e67-888d-af5d8375ad20" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_1ff6f69f-e094-4862-b1bf-a9bbd66f5f51" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_6ebc1ebe-4054-4356-9974-19e9ef64ec1b" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_1ff6f69f-e094-4862-b1bf-a9bbd66f5f51" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeUnaudited" xlink:type="simple" xlink:href="ghc-20250930.xsd#CondensedConsolidatedStatementsofComprehensiveIncomeUnaudited"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_d3fe961d-d74f-45bb-8e6a-d75b89c659a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax_17fe7fb1-e939-4485-9c8a-487f870ebdf6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_d3fe961d-d74f-45bb-8e6a-d75b89c659a2" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax_17fe7fb1-e939-4485-9c8a-487f870ebdf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax_860fb0d3-d72a-4331-9501-ecb6a220f9b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_d3fe961d-d74f-45bb-8e6a-d75b89c659a2" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax_860fb0d3-d72a-4331-9501-ecb6a220f9b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_d71579f1-a1f6-41c8-bcb0-6c5bc3335c5c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_62d432ad-fb16-4a52-a229-f8b31f658298" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_d71579f1-a1f6-41c8-bcb0-6c5bc3335c5c" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_62d432ad-fb16-4a52-a229-f8b31f658298" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax_12122c75-1b7a-41b8-bfba-0acdfa515637" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_d71579f1-a1f6-41c8-bcb0-6c5bc3335c5c" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax_12122c75-1b7a-41b8-bfba-0acdfa515637" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_ec5228d3-bf73-4c7d-bc4e-a3f7389e0cf4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_864f5c43-b906-4133-b439-4a46f0faecb5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_ec5228d3-bf73-4c7d-bc4e-a3f7389e0cf4" xlink:to="loc_us-gaap_ProfitLoss_864f5c43-b906-4133-b439-4a46f0faecb5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e5a1f413-1f59-4991-9ee8-bf4f4e8bcfbd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_ec5228d3-bf73-4c7d-bc4e-a3f7389e0cf4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e5a1f413-1f59-4991-9ee8-bf4f4e8bcfbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_a56ee63f-41fc-433a-bd5f-f3956a18002c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_bfe69302-d237-46ad-a36c-869a52665e5c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_a56ee63f-41fc-433a-bd5f-f3956a18002c" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_bfe69302-d237-46ad-a36c-869a52665e5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTax_59f186b8-5ecb-4b80-b954-d4b1489c39d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_a56ee63f-41fc-433a-bd5f-f3956a18002c" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTax_59f186b8-5ecb-4b80-b954-d4b1489c39d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_cc99923e-a565-4af3-9de7-e90e83736ab5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_747289c9-ab8c-4e26-ad6e-2da4a7312c98" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_cc99923e-a565-4af3-9de7-e90e83736ab5" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_747289c9-ab8c-4e26-ad6e-2da4a7312c98" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_c1fd7ade-5cea-4392-b1bf-56d5320735e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_cc99923e-a565-4af3-9de7-e90e83736ab5" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_c1fd7ade-5cea-4392-b1bf-56d5320735e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_d906b02d-e7b4-4372-ad4b-62fbd33e65ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_1635b54e-3b2c-43aa-b740-e32c098a11dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_d906b02d-e7b4-4372-ad4b-62fbd33e65ad" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_1635b54e-3b2c-43aa-b740-e32c098a11dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax_1bf58a7b-5678-4991-ac19-9470d43c4011" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_d906b02d-e7b4-4372-ad4b-62fbd33e65ad" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax_1bf58a7b-5678-4991-ac19-9470d43c4011" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_a7d62685-3fff-453a-9232-1061b00a7b7d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_d906b02d-e7b4-4372-ad4b-62fbd33e65ad" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_a7d62685-3fff-453a-9232-1061b00a7b7d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="ghc-20250930.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_439cb064-6251-4d5d-a94e-903541377a1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_09f52399-136d-4238-b2b6-60c5933c7e11" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_439cb064-6251-4d5d-a94e-903541377a1f" xlink:to="loc_us-gaap_Liabilities_09f52399-136d-4238-b2b6-60c5933c7e11" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_a50dbbfc-6103-422c-bc06-4c7d4185ae8d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_439cb064-6251-4d5d-a94e-903541377a1f" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_a50dbbfc-6103-422c-bc06-4c7d4185ae8d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_506262b7-a44a-4bd5-b2fa-a0954a15572b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_439cb064-6251-4d5d-a94e-903541377a1f" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_506262b7-a44a-4bd5-b2fa-a0954a15572b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_10f1eb40-263b-4bd2-8f82-dcf817f1d0be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_AssetsCurrent_10f1eb40-263b-4bd2-8f82-dcf817f1d0be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_14785e0d-e1d2-4604-abd6-68c64cc4ee6d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_14785e0d-e1d2-4604-abd6-68c64cc4ee6d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_52e77b59-c14c-4652-bbd3-403c8a54caaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_52e77b59-c14c-4652-bbd3-403c8a54caaa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_c2345fc7-3603-41e6-9cf2-fdc1b8c254c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_c2345fc7-3603-41e6-9cf2-fdc1b8c254c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_084f8efb-6284-4aef-88f2-bc8806c04542" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_Goodwill_084f8efb-6284-4aef-88f2-bc8806c04542" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_488af4c5-2360-4950-9dd6-f158f42924ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_488af4c5-2360-4950-9dd6-f158f42924ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7471977a-8764-4a01-97dc-ce83bf8d0ff6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7471977a-8764-4a01-97dc-ce83bf8d0ff6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_a5ffbc41-14fe-4e76-b5b5-a051a5b1d0c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_a5ffbc41-14fe-4e76-b5b5-a051a5b1d0c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_5d001f2b-2096-4f72-b720-66e9a2328631" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_5d001f2b-2096-4f72-b720-66e9a2328631" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_4e1ffeed-00c7-4c70-ab36-6a4371e41110" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_e2b37d51-febf-483e-853a-406c873c5806" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_4e1ffeed-00c7-4c70-ab36-6a4371e41110" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_7149738f-51f5-48ed-8e43-2bef594b4bfe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_e2faa39f-9ec5-45c4-a243-e6ec7d2d13f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7149738f-51f5-48ed-8e43-2bef594b4bfe" xlink:to="loc_us-gaap_CommonStockValue_e2faa39f-9ec5-45c4-a243-e6ec7d2d13f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_8359696d-3f34-4849-aa04-2944d8ad8b00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7149738f-51f5-48ed-8e43-2bef594b4bfe" xlink:to="loc_us-gaap_AdditionalPaidInCapital_8359696d-3f34-4849-aa04-2944d8ad8b00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1c6583ad-369f-49f4-80ea-6c1eba562cb1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7149738f-51f5-48ed-8e43-2bef594b4bfe" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1c6583ad-369f-49f4-80ea-6c1eba562cb1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_078dda2f-daa8-48d2-a0d3-7d2c6c4efecf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7149738f-51f5-48ed-8e43-2bef594b4bfe" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_078dda2f-daa8-48d2-a0d3-7d2c6c4efecf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_be193863-2563-4d3c-901d-b966d61813a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7149738f-51f5-48ed-8e43-2bef594b4bfe" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_be193863-2563-4d3c-901d-b966d61813a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AociLossCashFlowHedgeCumulativeGainLossAfterTax_04b06623-5d87-47a5-a634-1b0d424ca30c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AociLossCashFlowHedgeCumulativeGainLossAfterTax"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7149738f-51f5-48ed-8e43-2bef594b4bfe" xlink:to="loc_us-gaap_AociLossCashFlowHedgeCumulativeGainLossAfterTax_04b06623-5d87-47a5-a634-1b0d424ca30c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_97d6fab9-ef36-4881-9300-33ee60900aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7149738f-51f5-48ed-8e43-2bef594b4bfe" xlink:to="loc_us-gaap_TreasuryStockValue_97d6fab9-ef36-4881-9300-33ee60900aaa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_216efa32-2850-4e51-9f20-7ee9d2d3916b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_0d19eb39-c508-43b8-b24e-f3a2823a9c13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_216efa32-2850-4e51-9f20-7ee9d2d3916b" xlink:to="loc_us-gaap_PreferredStockValue_0d19eb39-c508-43b8-b24e-f3a2823a9c13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_e7686b41-8f6c-44ab-8297-0db02db5b13e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_216efa32-2850-4e51-9f20-7ee9d2d3916b" xlink:to="loc_us-gaap_StockholdersEquity_e7686b41-8f6c-44ab-8297-0db02db5b13e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_2c7099ce-e5d3-49b3-a236-751fe9f22523" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_216efa32-2850-4e51-9f20-7ee9d2d3916b" xlink:to="loc_us-gaap_MinorityInterest_2c7099ce-e5d3-49b3-a236-751fe9f22523" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_ef65338b-8bd1-4cd7-a35a-6ba004198e09" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_ef65338b-8bd1-4cd7-a35a-6ba004198e09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_8a9cafb0-5876-4fc3-91dc-59e5bc69bb4e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_8a9cafb0-5876-4fc3-91dc-59e5bc69bb4e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_InvestmentsInMarketableEquitySecuritiesAndOtherInvestments_48d3bc6b-0e1c-472c-aef7-62a52b22f556" xlink:href="ghc-20250930.xsd#ghc_InvestmentsInMarketableEquitySecuritiesAndOtherInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:to="loc_ghc_InvestmentsInMarketableEquitySecuritiesAndOtherInvestments_48d3bc6b-0e1c-472c-aef7-62a52b22f556" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_4f246eb6-adba-490a-b9d2-db9e6f90bd08" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsAndOtherReceivablesNetCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:to="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_4f246eb6-adba-490a-b9d2-db9e6f90bd08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_63250757-35d5-4651-b1ce-8041f220d6d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:to="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_63250757-35d5-4651-b1ce-8041f220d6d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_303b32f4-3359-4bb4-b4d2-c086bca17583" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_303b32f4-3359-4bb4-b4d2-c086bca17583" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_1507790e-cbf2-4dc3-8d28-703bd632c93c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:to="loc_us-gaap_IncomeTaxesReceivable_1507790e-cbf2-4dc3-8d28-703bd632c93c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_8e97adab-be19-4a06-bda5-b65624679318" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_65388bee-fd4f-4aef-a1ce-30c42c4fbaf4" xlink:to="loc_us-gaap_OtherAssetsCurrent_8e97adab-be19-4a06-bda5-b65624679318" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_88f68c15-79e4-4775-b9bf-7eedfebf8555" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_3beb7810-da4e-4d13-8e56-353bf2337471" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_88f68c15-79e4-4775-b9bf-7eedfebf8555" xlink:to="loc_us-gaap_LiabilitiesCurrent_3beb7810-da4e-4d13-8e56-353bf2337471" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_bd590593-a1fa-42d9-9436-244fb8417103" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_88f68c15-79e4-4775-b9bf-7eedfebf8555" xlink:to="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_bd590593-a1fa-42d9-9436-244fb8417103" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_b87c98d2-7791-428f-9b54-0d7f08c31110" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_88f68c15-79e4-4775-b9bf-7eedfebf8555" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_b87c98d2-7791-428f-9b54-0d7f08c31110" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_abaeaaff-ac35-49e0-b9d6-3f9dcf8f30af" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_88f68c15-79e4-4775-b9bf-7eedfebf8555" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_abaeaaff-ac35-49e0-b9d6-3f9dcf8f30af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmountNoncurrent_6a593659-7585-46da-8a2f-4e9732daa323" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmountNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_88f68c15-79e4-4775-b9bf-7eedfebf8555" xlink:to="loc_us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmountNoncurrent_6a593659-7585-46da-8a2f-4e9732daa323" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_3cbe12cb-b53c-44b0-b1a0-ff8107423a3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_88f68c15-79e4-4775-b9bf-7eedfebf8555" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_3cbe12cb-b53c-44b0-b1a0-ff8107423a3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_bd0fdfbd-6d1e-4a4c-bd1d-ad34c33f4870" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_88f68c15-79e4-4775-b9bf-7eedfebf8555" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_bd0fdfbd-6d1e-4a4c-bd1d-ad34c33f4870" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_7fac969f-951f-47db-a709-2af07be23195" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_f49d2f06-5138-4b2e-aba5-1e6bd49f36d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_7fac969f-951f-47db-a709-2af07be23195" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_f49d2f06-5138-4b2e-aba5-1e6bd49f36d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueCurrent_1dc60156-d6f8-4e48-b61a-8ffe9f99cc4d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredRevenueCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_7fac969f-951f-47db-a709-2af07be23195" xlink:to="loc_us-gaap_DeferredRevenueCurrent_1dc60156-d6f8-4e48-b61a-8ffe9f99cc4d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_917a342b-c40a-429c-a0f5-c30d262da265" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_7fac969f-951f-47db-a709-2af07be23195" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_917a342b-c40a-429c-a0f5-c30d262da265" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmountCurrent_0c956a5b-11d9-4cc7-8b83-9a6cfec340fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmountCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_7fac969f-951f-47db-a709-2af07be23195" xlink:to="loc_us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmountCurrent_0c956a5b-11d9-4cc7-8b83-9a6cfec340fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_8c4e6d82-bb6d-442e-84c2-7b09fab21ded" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_7fac969f-951f-47db-a709-2af07be23195" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_8c4e6d82-bb6d-442e-84c2-7b09fab21ded" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_9f99f69d-a0e2-4dd7-82c7-e814102879ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_7fac969f-951f-47db-a709-2af07be23195" xlink:to="loc_us-gaap_LongTermDebtCurrent_9f99f69d-a0e2-4dd7-82c7-e814102879ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrent_c506b2b0-e7a8-4a09-960f-53587c7a1c12" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPayableCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_7fac969f-951f-47db-a709-2af07be23195" xlink:to="loc_us-gaap_DividendsPayableCurrent_c506b2b0-e7a8-4a09-960f-53587c7a1c12" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/CondensedConsolidatedStatementsofCashFlowsUnaudited" xlink:type="simple" xlink:href="ghc-20250930.xsd#CondensedConsolidatedStatementsofCashFlowsUnaudited"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/CondensedConsolidatedStatementsofCashFlowsUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_bdda4217-8c90-41aa-bc1c-c5f7b4d74912" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_bdda4217-8c90-41aa-bc1c-c5f7b4d74912" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_aa52ea78-7d2c-44bc-ab71-48a6793fbbb7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_aa52ea78-7d2c-44bc-ab71-48a6793fbbb7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_e7d76c2c-c092-4b4e-a079-fd50ed7c0b31" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_e7d76c2c-c092-4b4e-a079-fd50ed7c0b31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_PaymentsToAcquireEquityMethodCostMethodInvestmentsAndOtherInvestments_416261a4-e15a-4e9f-b08a-7cd154ed0a82" xlink:href="ghc-20250930.xsd#ghc_PaymentsToAcquireEquityMethodCostMethodInvestmentsAndOtherInvestments"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_ghc_PaymentsToAcquireEquityMethodCostMethodInvestmentsAndOtherInvestments_416261a4-e15a-4e9f-b08a-7cd154ed0a82" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_NetProceedsFromSaleOfBusinessesPropertyPlantAndEquipmentAndOtherAssets_8d1d85a5-5d49-43b0-8603-6473ab517557" xlink:href="ghc-20250930.xsd#ghc_NetProceedsFromSaleOfBusinessesPropertyPlantAndEquipmentAndOtherAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_ghc_NetProceedsFromSaleOfBusinessesPropertyPlantAndEquipmentAndOtherAssets_8d1d85a5-5d49-43b0-8603-6473ab517557" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_36ac15eb-2410-41f4-89be-b411f3aa73a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_us-gaap_PaymentsToAcquireMarketableSecurities_36ac15eb-2410-41f4-89be-b411f3aa73a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_1c3073c8-26eb-4b8d-acd8-a901070809f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_1c3073c8-26eb-4b8d-acd8-a901070809f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_PaymentsToAcquireEquityMethodAndCostMethodInvestments_ebaf58e9-7d37-4970-906f-d909107f4480" xlink:href="ghc-20250930.xsd#ghc_PaymentsToAcquireEquityMethodAndCostMethodInvestments"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_ghc_PaymentsToAcquireEquityMethodAndCostMethodInvestments_ebaf58e9-7d37-4970-906f-d909107f4480" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_0d957e8f-6022-46e3-b9ae-f7eefdc40373" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_0d957e8f-6022-46e3-b9ae-f7eefdc40373" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForAdvanceToAffiliate_198afa00-d948-491f-a7a8-6dd250f2af7a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForAdvanceToAffiliate"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_e0a575b0-04e8-427f-a065-881c62d23ced" xlink:to="loc_us-gaap_PaymentsForAdvanceToAffiliate_198afa00-d948-491f-a7a8-6dd250f2af7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_8aabfd72-2463-45d8-96ab-2ddbcfd08184" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_8aabfd72-2463-45d8-96ab-2ddbcfd08184" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_d731f93b-04b8-496c-9bd0-bbdb11581327" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_d731f93b-04b8-496c-9bd0-bbdb11581327" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_28997124-cbea-433d-b084-a560d23cbe9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_28997124-cbea-433d-b084-a560d23cbe9b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_ProceedsFromPaymentsOfVehicleFloorPlanPayableNet_55d92879-b830-4f2e-ab44-1f2262767d2e" xlink:href="ghc-20250930.xsd#ghc_ProceedsFromPaymentsOfVehicleFloorPlanPayableNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_ghc_ProceedsFromPaymentsOfVehicleFloorPlanPayableNet_55d92879-b830-4f2e-ab44-1f2262767d2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfOrdinaryDividends_d689eac2-2e26-4014-ac5a-3d69d016ca96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfOrdinaryDividends"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_PaymentsOfOrdinaryDividends_d689eac2-2e26-4014-ac5a-3d69d016ca96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMinorityShareholders_d316c706-aa13-4e98-a552-d0ebf02ad27b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromMinorityShareholders"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_ProceedsFromMinorityShareholders_d316c706-aa13-4e98-a552-d0ebf02ad27b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_cd2d265c-91f6-468e-8cc7-df095c2f98ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_cd2d265c-91f6-468e-8cc7-df095c2f98ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_8c512315-a2bd-4a0a-9450-e241b246a11d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_8c512315-a2bd-4a0a-9450-e241b246a11d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_07ff5200-3ddd-4a42-97da-1fbe7ecef8e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_07ff5200-3ddd-4a42-97da-1fbe7ecef8e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_f52ae54f-5e10-4be3-9336-d16396c5e529" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_f52ae54f-5e10-4be3-9336-d16396c5e529" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_d95fb30a-6114-4c5a-862a-1c14dc94d6f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromRepaymentsOfLinesOfCredit"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_d95fb30a-6114-4c5a-862a-1c14dc94d6f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest_825869dd-291d-43de-84d8-75776345fe14" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest_825869dd-291d-43de-84d8-75776345fe14" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfBankOverdrafts_64eb304e-662b-491f-8bf3-988302863228" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromRepaymentsOfBankOverdrafts"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfBankOverdrafts_64eb304e-662b-491f-8bf3-988302863228" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_5895dab6-42e2-42d9-9bb0-aca583598f90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_5895dab6-42e2-42d9-9bb0-aca583598f90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_DistributionsPaidToNoncontrollingInterest_0832c9e9-03e3-4360-80ad-bf5d9fbc3e36" xlink:href="ghc-20250930.xsd#ghc_DistributionsPaidToNoncontrollingInterest"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_c79a2625-2de9-4c08-90a4-4beceb171eec" xlink:to="loc_ghc_DistributionsPaidToNoncontrollingInterest_0832c9e9-03e3-4360-80ad-bf5d9fbc3e36" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_2a2c7531-a5fd-42a1-88fb-390c9c0b3bf4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f39d89cf-9b68-4729-ab04-aaf3626b4fd1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_2a2c7531-a5fd-42a1-88fb-390c9c0b3bf4" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f39d89cf-9b68-4729-ab04-aaf3626b4fd1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_b4f7c05b-c4f3-4b4d-b4dd-e250ddf0c200" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_2a2c7531-a5fd-42a1-88fb-390c9c0b3bf4" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_b4f7c05b-c4f3-4b4d-b4dd-e250ddf0c200" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_99fa714c-e3fd-40cd-a4cf-550190d0e83f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_2a2c7531-a5fd-42a1-88fb-390c9c0b3bf4" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_99fa714c-e3fd-40cd-a4cf-550190d0e83f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0e9009dc-4ea5-4c13-b8f4-52dde94af039" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_2a2c7531-a5fd-42a1-88fb-390c9c0b3bf4" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0e9009dc-4ea5-4c13-b8f4-52dde94af039" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_fa410a9b-e0b7-4e6d-bd2c-ccf5627bab47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_ProfitLoss_fa410a9b-e0b7-4e6d-bd2c-ccf5627bab47" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_DepreciationDepletionAmortizationAndImpairment_0f5f84ac-ae5d-49c3-b0db-365bcf35041e" xlink:href="ghc-20250930.xsd#ghc_DepreciationDepletionAmortizationAndImpairment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_ghc_DepreciationDepletionAmortizationAndImpairment_0f5f84ac-ae5d-49c3-b0db-365bcf35041e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_2ee6f1cb-0375-4293-8e40-be2e2bbb9d34" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_2ee6f1cb-0375-4293-8e40-be2e2bbb9d34" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_5c2d5da6-c62b-4395-a214-409b7d4c3995" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_5c2d5da6-c62b-4395-a214-409b7d4c3995" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestments_4064fb7f-90e5-4c82-9556-637683f4c32a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_UnrealizedGainLossOnInvestments_4064fb7f-90e5-4c82-9556-637683f4c32a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_553e7016-0d12-40ec-bd70-088cf4787af8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_553e7016-0d12-40ec-bd70-088cf4787af8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_3124926a-ef42-4b6c-99f1-7f527655e3d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_ShareBasedCompensation_3124926a-ef42-4b6c-99f1-7f527655e3d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_9269bb96-012d-4f26-af4b-b04dfe2248a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_9269bb96-012d-4f26-af4b-b04dfe2248a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_be037f68-98d6-417b-a1f6-f43a24707752" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_be037f68-98d6-417b-a1f6-f43a24707752" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_1d25ec99-ad70-417b-bae8-1f3b32d2551a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_1d25ec99-ad70-417b-bae8-1f3b32d2551a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionExpense_8831953e-816a-42a1-8be0-198bbcb47817" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccretionExpense"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_AccretionExpense_8831953e-816a-42a1-8be0-198bbcb47817" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_14f40a95-c585-432d-a8e1-8b69a8b444c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_14f40a95-c585-432d-a8e1-8b69a8b444c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_4b1dd340-f044-4176-a855-3090796bc14f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_4b1dd340-f044-4176-a855-3090796bc14f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_fc247d72-efa9-451f-8384-117c59342bae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_fc247d72-efa9-451f-8384-117c59342bae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_d042c41d-b655-434a-94c1-90d84850439a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_d042c41d-b655-434a-94c1-90d84850439a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxes_426a003f-fffa-459c-a5ac-067e54899a72" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInIncomeTaxes"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxes_426a003f-fffa-459c-a5ac-067e54899a72" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_1035ffd4-75c4-4790-b86e-c84ca4ec9989" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOperatingLeaseLiability"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_1035ffd4-75c4-4790-b86e-c84ca4ec9989" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_b2c485f9-239a-486d-8d00-6bb31bf5b46e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:calculationArc order="18" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_b2c485f9-239a-486d-8d00-6bb31bf5b46e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_941303d7-fc18-4d8c-8624-f9e268e403da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_941303d7-fc18-4d8c-8624-f9e268e403da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_AccretionExpenseAndChangeInFairValue_5cf30eca-5390-4620-9552-9459a949f285" xlink:href="ghc-20250930.xsd#ghc_AccretionExpenseAndChangeInFairValue"/>
    <link:calculationArc order="20" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_ghc_AccretionExpenseAndChangeInFairValue_5cf30eca-5390-4620-9552-9459a949f285" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_CreditLossExpenseAndProvisionForOtherReceivables_3741d838-e2aa-446a-8d35-316f1b72f517" xlink:href="ghc-20250930.xsd#ghc_CreditLossExpenseAndProvisionForOtherReceivables"/>
    <link:calculationArc order="21" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_ghc_CreditLossExpenseAndProvisionForOtherReceivables_3741d838-e2aa-446a-8d35-316f1b72f517" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_cd196a92-1ee2-4488-b41f-3c1cff339a94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:calculationArc order="22" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_63823362-f845-4520-81e2-96119907e057" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_cd196a92-1ee2-4488-b41f-3c1cff339a94" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/AcquisitionsandDispositionsofBusinessesAssetsAcquiredandLiabilitiesAssumedDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#AcquisitionsandDispositionsofBusinessesAssetsAcquiredandLiabilitiesAssumedDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/AcquisitionsandDispositionsofBusinessesAssetsAcquiredandLiabilitiesAssumedDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:href="ghc-20250930.xsd#ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_c5ab1cb2-0eeb-4e70-a7d8-9caa0d485f0e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_c5ab1cb2-0eeb-4e70-a7d8-9caa0d485f0e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_749c23d1-d022-43f4-afc8-40307d9fce94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_749c23d1-d022-43f4-afc8-40307d9fce94" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_f0728afd-ec97-42a2-9462-965b799d46c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_f0728afd-ec97-42a2-9462-965b799d46c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetAcquiredandLiabilityAssumedLeaseRightofUseAsset_ebfddf15-7759-4fd6-8fc2-07ed3ca11f91" xlink:href="ghc-20250930.xsd#ghc_BusinessCombinationRecognizedIdentifiableAssetAcquiredandLiabilityAssumedLeaseRightofUseAsset"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetAcquiredandLiabilityAssumedLeaseRightofUseAsset_ebfddf15-7759-4fd6-8fc2-07ed3ca11f91" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_a33cbc93-4b3c-4326-88bb-1d82305eec4b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_us-gaap_Goodwill_a33cbc93-4b3c-4326-88bb-1d82305eec4b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_4afec048-8750-4f7e-b402-7d3ddf2c85ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_4afec048-8750-4f7e-b402-7d3ddf2c85ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets_f8ffafb1-54b1-4c36-b0ad-fb77998a0484" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets_f8ffafb1-54b1-4c36-b0ad-fb77998a0484" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_6342dd19-05c9-44b9-a415-2a1cab8ff23b" xlink:href="ghc-20250930.xsd#ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_6342dd19-05c9-44b9-a415-2a1cab8ff23b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_BusinessCombinationRecognizedLiabilityAssumedPensionLiabilities_d1505e87-4c2c-4a13-8d7d-6e8b11d31036" xlink:href="ghc-20250930.xsd#ghc_BusinessCombinationRecognizedLiabilityAssumedPensionLiabilities"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_ghc_BusinessCombinationRecognizedLiabilityAssumedPensionLiabilities_d1505e87-4c2c-4a13-8d7d-6e8b11d31036" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_47178c84-ff8f-468f-894b-5103d6be4479" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_47178c84-ff8f-468f-894b-5103d6be4479" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetAcquiredandLiabiityAssumedCurrentandNoncurrentLeaseLiabilities_814a2144-b44b-40d3-82a7-a1bef2254563" xlink:href="ghc-20250930.xsd#ghc_BusinessCombinationRecognizedIdentifiableAssetAcquiredandLiabiityAssumedCurrentandNoncurrentLeaseLiabilities"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillandLiabilitiesAssumedLessNoncontrollingInterestNetOfCashReceived_b6d5d2a6-bf54-4bc2-8448-680e3522a341" xlink:to="loc_ghc_BusinessCombinationRecognizedIdentifiableAssetAcquiredandLiabiityAssumedCurrentandNoncurrentLeaseLiabilities_814a2144-b44b-40d3-82a7-a1bef2254563" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/InvestmentsInvestmentsinMarketableEquitySecuritiesDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#InvestmentsInvestmentsinMarketableEquitySecuritiesDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/InvestmentsInvestmentsinMarketableEquitySecuritiesDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiCost_3d6161e3-cc72-43b3-b268-769e5eb0706f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNiCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_EquitySecuritiesFVNIAccumulatedGrossUnrealizedGain_53c5af8f-82fa-4d1b-b9e7-fb79cacb27d3" xlink:href="ghc-20250930.xsd#ghc_EquitySecuritiesFVNIAccumulatedGrossUnrealizedGain"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EquitySecuritiesFvNiCost_3d6161e3-cc72-43b3-b268-769e5eb0706f" xlink:to="loc_ghc_EquitySecuritiesFVNIAccumulatedGrossUnrealizedGain_53c5af8f-82fa-4d1b-b9e7-fb79cacb27d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_EquitySecuritiesFVNIAccumulatedGrossUnrealizedLoss_02a0e2e7-b45e-4d34-ae8e-a490d0ddbc9c" xlink:href="ghc-20250930.xsd#ghc_EquitySecuritiesFVNIAccumulatedGrossUnrealizedLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EquitySecuritiesFvNiCost_3d6161e3-cc72-43b3-b268-769e5eb0706f" xlink:to="loc_ghc_EquitySecuritiesFVNIAccumulatedGrossUnrealizedLoss_02a0e2e7-b45e-4d34-ae8e-a490d0ddbc9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNi_406be1cd-b160-44df-9ac4-cb3cbc3a9b25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNi"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EquitySecuritiesFvNiCost_3d6161e3-cc72-43b3-b268-769e5eb0706f" xlink:to="loc_us-gaap_EquitySecuritiesFvNi_406be1cd-b160-44df-9ac4-cb3cbc3a9b25" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/InvestmentsGainLossonMarketableEquitySecuritiesDetails2" xlink:type="simple" xlink:href="ghc-20250930.xsd#InvestmentsGainLossonMarketableEquitySecuritiesDetails2"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/InvestmentsGainLossonMarketableEquitySecuritiesDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiGainLoss_0b9932c6-7376-4dc7-8c92-246f7a71f8db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNiGainLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiRealizedGainLoss_067d0bf2-06fd-4170-b031-d1ba58c1b2f4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNiRealizedGainLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EquitySecuritiesFvNiGainLoss_0b9932c6-7376-4dc7-8c92-246f7a71f8db" xlink:to="loc_us-gaap_EquitySecuritiesFvNiRealizedGainLoss_067d0bf2-06fd-4170-b031-d1ba58c1b2f4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_5e745de3-35a4-4c08-81ca-8818b559c9f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EquitySecuritiesFvNiGainLoss_0b9932c6-7376-4dc7-8c92-246f7a71f8db" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_5e745de3-35a4-4c08-81ca-8818b559c9f8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/AccountsReceivableAccountsPayableVehicleFloorPlanPayableandAccruedLiabilitiesScheduleofAccountsReceivableDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#AccountsReceivableAccountsPayableVehicleFloorPlanPayableandAccruedLiabilitiesScheduleofAccountsReceivableDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/AccountsReceivableAccountsPayableVehicleFloorPlanPayableandAccruedLiabilitiesScheduleofAccountsReceivableDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_cd92733c-af4a-4d3c-a7d6-b254a90452ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsAndOtherReceivablesNetCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_e4e4efdc-95ea-415c-bd18-52d78ec8536a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_cd92733c-af4a-4d3c-a7d6-b254a90452ec" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_e4e4efdc-95ea-415c-bd18-52d78ec8536a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivables_4968ffea-1546-480d-9afb-a1a4fcf14228" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherReceivables"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_cd92733c-af4a-4d3c-a7d6-b254a90452ec" xlink:to="loc_us-gaap_OtherReceivables_4968ffea-1546-480d-9afb-a1a4fcf14228" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/AccountsReceivableAccountsPayableVehicleFloorPlanPayableandAccruedLiabilitiesScheduleofAccountsPayableandAccruedLiabilitiesDetails2" xlink:type="simple" xlink:href="ghc-20250930.xsd#AccountsReceivableAccountsPayableVehicleFloorPlanPayableandAccruedLiabilitiesScheduleofAccountsPayableandAccruedLiabilitiesDetails2"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/AccountsReceivableAccountsPayableVehicleFloorPlanPayableandAccruedLiabilitiesScheduleofAccountsPayableandAccruedLiabilitiesDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_12df128c-1b3a-49fa-90b8-dd035bd16c6d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_1614837b-8b3b-4b76-a6c9-f5cd7286548c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_12df128c-1b3a-49fa-90b8-dd035bd16c6d" xlink:to="loc_us-gaap_AccountsPayableCurrent_1614837b-8b3b-4b76-a6c9-f5cd7286548c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_VehicleFloorPlanFacilityPayable_14b54d3d-ee90-4205-ac21-3a0be02d5314" xlink:href="ghc-20250930.xsd#ghc_VehicleFloorPlanFacilityPayable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_12df128c-1b3a-49fa-90b8-dd035bd16c6d" xlink:to="loc_ghc_VehicleFloorPlanFacilityPayable_14b54d3d-ee90-4205-ac21-3a0be02d5314" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_6d1300d6-a5f3-436f-a813-4bc9b6ca93d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_12df128c-1b3a-49fa-90b8-dd035bd16c6d" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_6d1300d6-a5f3-436f-a813-4bc9b6ca93d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_02cf4872-b2e9-46d9-9a52-71c346e0d0d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_12df128c-1b3a-49fa-90b8-dd035bd16c6d" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_02cf4872-b2e9-46d9-9a52-71c346e0d0d8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/InventoriesandContractsinProgressDetails" xlink:type="simple" xlink:href="ghc-20250930.xsd#InventoriesandContractsinProgressDetails"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/InventoriesandContractsinProgressDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_e75edac1-a8a4-4342-ac61-5981ad6f795a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_f2951e92-c979-49d7-98d1-cc7d46b82f43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_e75edac1-a8a4-4342-ac61-5981ad6f795a" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_f2951e92-c979-49d7-98d1-cc7d46b82f43" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_c3f1e1be-5df4-447e-8dfe-7c076db17a90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_e75edac1-a8a4-4342-ac61-5981ad6f795a" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_c3f1e1be-5df4-447e-8dfe-7c076db17a90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_1b42bdc3-57c4-49cf-9c38-046cb3036ce5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_e75edac1-a8a4-4342-ac61-5981ad6f795a" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_1b42bdc3-57c4-49cf-9c38-046cb3036ce5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryForLongTermContractsOrPrograms_17f5add8-358f-48eb-9b67-c8caedc93aa9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryForLongTermContractsOrPrograms"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_e75edac1-a8a4-4342-ac61-5981ad6f795a" xlink:to="loc_us-gaap_InventoryForLongTermContractsOrPrograms_17f5add8-358f-48eb-9b67-c8caedc93aa9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/GoodwillandOtherIntangibleAssetsOtherIntangibleAssetsDetails2" xlink:type="simple" xlink:href="ghc-20250930.xsd#GoodwillandOtherIntangibleAssetsOtherIntangibleAssetsDetails2"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/GoodwillandOtherIntangibleAssetsOtherIntangibleAssetsDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_60263009-65a8-4834-9fd6-ca2654239e47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_66f76c66-d9c1-4a8c-a033-9d7de2f5bb00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_60263009-65a8-4834-9fd6-ca2654239e47" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_66f76c66-d9c1-4a8c-a033-9d7de2f5bb00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_63696a3c-a6e2-45ee-9bbb-e644d919351e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_60263009-65a8-4834-9fd6-ca2654239e47" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_63696a3c-a6e2-45ee-9bbb-e644d919351e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/DebtDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#DebtDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/DebtDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_e61a877c-d7b2-4f22-9866-d6e48385451b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtLongtermAndShorttermCombinedAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_b59bc1c1-1c7e-49c9-8e6f-ee3197855747" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_e61a877c-d7b2-4f22-9866-d6e48385451b" xlink:to="loc_us-gaap_LongTermDebtCurrent_b59bc1c1-1c7e-49c9-8e6f-ee3197855747" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_9744b7ce-016b-4e2a-a193-23665c840b6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_e61a877c-d7b2-4f22-9866-d6e48385451b" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_9744b7ce-016b-4e2a-a193-23665c840b6e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/FairValueMeasurementsFairValueofFinancialAssetsandLiabilitiesDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#FairValueMeasurementsFairValueofFinancialAssetsandLiabilitiesDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/FairValueMeasurementsFairValueofFinancialAssetsandLiabilitiesDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosure_9257eed8-09e8-4a91-a574-9f1498f41009" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue_fd9c2e17-3e85-40a8-bbd4-c91465047465" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MoneyMarketFundsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InvestmentsFairValueDisclosure_9257eed8-09e8-4a91-a574-9f1498f41009" xlink:to="loc_us-gaap_MoneyMarketFundsAtCarryingValue_fd9c2e17-3e85-40a8-bbd4-c91465047465" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNi_637243c6-f233-485c-9ea1-ec2e8ea23307" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNi"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InvestmentsFairValueDisclosure_9257eed8-09e8-4a91-a574-9f1498f41009" xlink:to="loc_us-gaap_EquitySecuritiesFvNi_637243c6-f233-485c-9ea1-ec2e8ea23307" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermInvestments_84c490ce-925f-42c4-b3ff-78248c7986f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherShortTermInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InvestmentsFairValueDisclosure_9257eed8-09e8-4a91-a574-9f1498f41009" xlink:to="loc_us-gaap_OtherShortTermInvestments_84c490ce-925f-42c4-b3ff-78248c7986f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_46dc4c83-e792-4d08-a918-d7c5ec5c25a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyContractAssetFairValueDisclosure"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InvestmentsFairValueDisclosure_9257eed8-09e8-4a91-a574-9f1498f41009" xlink:to="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_46dc4c83-e792-4d08-a918-d7c5ec5c25a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_76ebf6f8-9422-46ef-903d-6cea72715901" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_09c54929-a852-468f-ae51-3c34a0fb0f4a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_76ebf6f8-9422-46ef-903d-6cea72715901" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_09c54929-a852-468f-ae51-3c34a0fb0f4a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue_d5454bfe-6578-42d3-8236-4596259e7836" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_76ebf6f8-9422-46ef-903d-6cea72715901" xlink:to="loc_us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue_d5454bfe-6578-42d3-8236-4596259e7836" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsFairValueOfShares_519bb71c-3f32-4653-a10a-d943070e610f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsFairValueOfShares"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_76ebf6f8-9422-46ef-903d-6cea72715901" xlink:to="loc_us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsFairValueOfShares_519bb71c-3f32-4653-a10a-d943070e610f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/EarningsPerShareDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#EarningsPerShareDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/EarningsPerShareDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_150ecbbf-08dd-4a13-8231-2021824852df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_a70ac2d2-8a2d-4dd8-b185-ffad46dfa708" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_150ecbbf-08dd-4a13-8231-2021824852df" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_a70ac2d2-8a2d-4dd8-b185-ffad46dfa708" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_52280993-4b6c-41c9-97b1-049c9eb0ad36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_8968746d-a6ad-4ba8-8f42-20b5ab887aa8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_52280993-4b6c-41c9-97b1-049c9eb0ad36" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_8968746d-a6ad-4ba8-8f42-20b5ab887aa8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_AdditionalUndistributedEarningsDueToDilutiveStockOptions_e3f0c06e-2e7d-4b93-95ff-0f66c4526ca6" xlink:href="ghc-20250930.xsd#ghc_AdditionalUndistributedEarningsDueToDilutiveStockOptions"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_52280993-4b6c-41c9-97b1-049c9eb0ad36" xlink:to="loc_ghc_AdditionalUndistributedEarningsDueToDilutiveStockOptions_e3f0c06e-2e7d-4b93-95ff-0f66c4526ca6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/PensionandPostretirementPlansTotalBenefitCostDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#PensionandPostretirementPlansTotalBenefitCostDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/PensionandPostretirementPlansTotalBenefitCostDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_0708c066-b508-49d0-a1dc-5d3eda5eb62a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_ed94ee98-0543-4741-b6e7-116a8c75c0e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_0708c066-b508-49d0-a1dc-5d3eda5eb62a" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_ed94ee98-0543-4741-b6e7-116a8c75c0e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_5a605f9b-2d38-41b6-b38f-0d2455468715" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_0708c066-b508-49d0-a1dc-5d3eda5eb62a" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_5a605f9b-2d38-41b6-b38f-0d2455468715" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_54fc6889-7245-410a-b177-8d5ba872e93d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_0708c066-b508-49d0-a1dc-5d3eda5eb62a" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_54fc6889-7245-410a-b177-8d5ba872e93d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_e06284be-8bfe-4928-b4cf-b1a339f28a6b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_0708c066-b508-49d0-a1dc-5d3eda5eb62a" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_e06284be-8bfe-4928-b4cf-b1a339f28a6b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_13b1c3a5-629f-49b5-be37-1f1c735e9a25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_0708c066-b508-49d0-a1dc-5d3eda5eb62a" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_13b1c3a5-629f-49b5-be37-1f1c735e9a25" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod_5474c7f9-ef77-47c7-b54d-148ddb26cccf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_0708c066-b508-49d0-a1dc-5d3eda5eb62a" xlink:to="loc_us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod_5474c7f9-ef77-47c7-b54d-148ddb26cccf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments_d79b3afb-8bd0-4381-9dbd-b66217074b33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_0708c066-b508-49d0-a1dc-5d3eda5eb62a" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments_d79b3afb-8bd0-4381-9dbd-b66217074b33" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingEarlyRetirementProgramSpecialSeparationBenefitExpenseCurtailmentAndSettlement_d6529b8b-caf1-4881-b74c-6765eeecabd9" xlink:href="ghc-20250930.xsd#ghc_NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingEarlyRetirementProgramSpecialSeparationBenefitExpenseCurtailmentAndSettlement"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_43946d06-5433-4ae5-885c-1cdb05651de1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingEarlyRetirementProgramSpecialSeparationBenefitExpenseCurtailmentAndSettlement_d6529b8b-caf1-4881-b74c-6765eeecabd9" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_43946d06-5433-4ae5-885c-1cdb05651de1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_a7172cbe-46fa-4bcf-aa4f-d5663abb0059" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingEarlyRetirementProgramSpecialSeparationBenefitExpenseCurtailmentAndSettlement_d6529b8b-caf1-4881-b74c-6765eeecabd9" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_a7172cbe-46fa-4bcf-aa4f-d5663abb0059" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_fead1592-1647-4b2d-ba8c-f4ef5380da22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingEarlyRetirementProgramSpecialSeparationBenefitExpenseCurtailmentAndSettlement_d6529b8b-caf1-4881-b74c-6765eeecabd9" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_fead1592-1647-4b2d-ba8c-f4ef5380da22" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_d1a8c200-17f7-48a0-9d6b-684ce0e1616c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingEarlyRetirementProgramSpecialSeparationBenefitExpenseCurtailmentAndSettlement_d6529b8b-caf1-4881-b74c-6765eeecabd9" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_d1a8c200-17f7-48a0-9d6b-684ce0e1616c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_3195e010-ee21-4d2a-9ea4-8dfad8f98040" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingEarlyRetirementProgramSpecialSeparationBenefitExpenseCurtailmentAndSettlement_d6529b8b-caf1-4881-b74c-6765eeecabd9" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_3195e010-ee21-4d2a-9ea4-8dfad8f98040" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/OtherNonOperatingIncomeExpenseDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#OtherNonOperatingIncomeExpenseDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/OtherNonOperatingIncomeExpenseDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_04647d46-7ebe-4fde-98ff-75ca89218800" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount_ada27f0c-f02f-46ec-96bc-31dd64782416" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_04647d46-7ebe-4fde-98ff-75ca89218800" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount_ada27f0c-f02f-46ec-96bc-31dd64782416" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_6d85f92e-cf56-4f52-ab7a-7cdc868dec72" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_04647d46-7ebe-4fde-98ff-75ca89218800" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_6d85f92e-cf56-4f52-ab7a-7cdc868dec72" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_7109d06f-ecd9-4351-ac81-d4eebb3bd313" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_04647d46-7ebe-4fde-98ff-75ca89218800" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_7109d06f-ecd9-4351-ac81-d4eebb3bd313" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount_c6d3315d-2663-47d3-ad8b-ec2fb84bcf6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_04647d46-7ebe-4fde-98ff-75ca89218800" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount_c6d3315d-2663-47d3-ad8b-ec2fb84bcf6e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_7a10831d-f44b-4c0f-9f0f-e97052d1d6a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_04647d46-7ebe-4fde-98ff-75ca89218800" xlink:to="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_7a10831d-f44b-4c0f-9f0f-e97052d1d6a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingGainsLosses_1182075c-74ed-4d80-8e52-42eb546d8fb0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingGainsLosses"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_04647d46-7ebe-4fde-98ff-75ca89218800" xlink:to="loc_us-gaap_OtherNonoperatingGainsLosses_1182075c-74ed-4d80-8e52-42eb546d8fb0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/AccumulatedOtherComprehensiveIncomeLossComponentsofOCIDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#AccumulatedOtherComprehensiveIncomeLossComponentsofOCIDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/AccumulatedOtherComprehensiveIncomeLossComponentsofOCIDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_0cde40e3-993f-47f5-ae44-6ca629fcebea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_a3f2ae1c-ac41-429b-860c-6c80baaab06e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_0cde40e3-993f-47f5-ae44-6ca629fcebea" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_a3f2ae1c-ac41-429b-860c-6c80baaab06e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_19f9cbef-845a-486e-b4df-2795a069de78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_0cde40e3-993f-47f5-ae44-6ca629fcebea" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_19f9cbef-845a-486e-b4df-2795a069de78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_7237f834-09ab-4bcd-8179-ace37ee8e0f4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax_6e372772-5980-4757-b985-0969d6e29b39" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_7237f834-09ab-4bcd-8179-ace37ee8e0f4" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax_6e372772-5980-4757-b985-0969d6e29b39" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_2e60a015-d788-4e0d-9e3b-a8da00421ef4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReclassificationFromAociCurrentPeriodTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_7237f834-09ab-4bcd-8179-ace37ee8e0f4" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_2e60a015-d788-4e0d-9e3b-a8da00421ef4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTax_fd32ec4e-8622-4cfe-bc15-458722c80f78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_027874eb-7f0a-4d1c-9820-bc6c4b74f2b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossTax_fd32ec4e-8622-4cfe-bc15-458722c80f78" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_027874eb-7f0a-4d1c-9820-bc6c4b74f2b3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_a8d71e8b-7c51-4946-9d19-ab719eb99b2a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReclassificationFromAociCurrentPeriodTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossTax_fd32ec4e-8622-4cfe-bc15-458722c80f78" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_a8d71e8b-7c51-4946-9d19-ab719eb99b2a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/AccumulatedOtherComprehensiveIncomeLossAOCIbalancesDetails2" xlink:type="simple" xlink:href="ghc-20250930.xsd#AccumulatedOtherComprehensiveIncomeLossAOCIbalancesDetails2"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/AccumulatedOtherComprehensiveIncomeLossAOCIbalancesDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_cb467cb7-4419-4e43-aae1-9a72bf725365" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_bece4ae5-68d5-49a0-9226-c0a4e03b16b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_cb467cb7-4419-4e43-aae1-9a72bf725365" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_bece4ae5-68d5-49a0-9226-c0a4e03b16b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_a546bc06-f042-4fc3-8ef5-71f0326d03f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_cb467cb7-4419-4e43-aae1-9a72bf725365" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_a546bc06-f042-4fc3-8ef5-71f0326d03f3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.ghco.com/role/BusinessSegmentsInformationbyOperatingSegmentDetails1" xlink:type="simple" xlink:href="ghc-20250930.xsd#BusinessSegmentsInformationbyOperatingSegmentDetails1"/>
  <link:calculationLink xlink:role="http://www.ghco.com/role/BusinessSegmentsInformationbyOperatingSegmentDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:href="ghc-20250930.xsd#ghc_EBITDAP"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_0973bdae-7259-45a2-ac89-13ed41950203" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_0973bdae-7259-45a2-ac89-13ed41950203" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_b2d8050a-21e5-4f84-9114-c58f31d1241b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfRevenue"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:to="loc_us-gaap_CostOfRevenue_b2d8050a-21e5-4f84-9114-c58f31d1241b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold_db92fe6f-c2ca-47bb-ba21-8ba2e040e753" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:to="loc_us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold_db92fe6f-c2ca-47bb-ba21-8ba2e040e753" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_OccupancyExpense_671ece65-2156-4bd6-8d46-1844d45e7ff1" xlink:href="ghc-20250930.xsd#ghc_OccupancyExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:to="loc_ghc_OccupancyExpense_671ece65-2156-4bd6-8d46-1844d45e7ff1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketingAndAdvertisingExpense_ac0e7c60-904a-46fd-a75d-b490178cb6e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MarketingAndAdvertisingExpense"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:to="loc_us-gaap_MarketingAndAdvertisingExpense_ac0e7c60-904a-46fd-a75d-b490178cb6e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_NetworkingAndProgrammingExpenses_65b142f7-4d06-4403-a9be-6e0ec4d6b671" xlink:href="ghc-20250930.xsd#ghc_NetworkingAndProgrammingExpenses"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:to="loc_ghc_NetworkingAndProgrammingExpenses_65b142f7-4d06-4403-a9be-6e0ec4d6b671" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_ManagementServicesExpense_361f58af-cf74-4121-a649-c2d92e61bf2c" xlink:href="ghc-20250930.xsd#ghc_ManagementServicesExpense"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:to="loc_ghc_ManagementServicesExpense_361f58af-cf74-4121-a649-c2d92e61bf2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_9ebe68e0-557f-45e9-a6af-af23e649e4b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ghc_EBITDAP_ad09ac46-bc8d-4327-980a-e9bd89cbd893" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_9ebe68e0-557f-45e9-a6af-af23e649e4b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_eed3eb43-7af0-4e4f-94f0-e395119ede56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNi_7411602a-9fff-4983-aaea-990472ea435e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNi"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_eed3eb43-7af0-4e4f-94f0-e395119ede56" xlink:to="loc_us-gaap_EquitySecuritiesFvNi_7411602a-9fff-4983-aaea-990472ea435e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_9315ee7a-0400-48ee-b14e-ede3a6bad827" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_eed3eb43-7af0-4e4f-94f0-e395119ede56" xlink:to="loc_us-gaap_EquityMethodInvestments_9315ee7a-0400-48ee-b14e-ede3a6bad827" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_04b44d3f-f3a8-4b97-9803-0261eda5f962" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_eed3eb43-7af0-4e4f-94f0-e395119ede56" xlink:to="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_04b44d3f-f3a8-4b97-9803-0261eda5f962" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ghc_IdentifiableAssets_cb3be28f-b279-4c89-94b0-5e10aaf406d8" xlink:href="ghc-20250930.xsd#ghc_IdentifiableAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_eed3eb43-7af0-4e4f-94f0-e395119ede56" xlink:to="loc_ghc_IdentifiableAssets_cb3be28f-b279-4c89-94b0-5e10aaf406d8" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
