<?xml version="1.0" encoding="us-ascii"?>
<!--Generated by Broadridge PROfile 26.3.2.5342 Broadridge-->
<link:linkbase 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" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item" />
  <link:roleRef roleURI="http://hafnia.com/role/NonifrsMeasuresReconciliationOfAdjustedEbitdaToProfitLossDetails" xlink:type="simple" xlink:href="hafn-20260630.xsd#NonifrsMeasuresReconciliationOfAdjustedEbitdaToProfitLossDetails" />
  <link:roleRef roleURI="http://hafnia.com/role/SegmentInformationOperatingSegmentsDetails" xlink:type="simple" xlink:href="hafn-20260630.xsd#SegmentInformationOperatingSegmentsDetails" />
  <link:roleRef roleURI="http://hafnia.com/role/BorrowingsBorrowingsCurrentAndNoncurrentDetails" xlink:type="simple" xlink:href="hafn-20260630.xsd#BorrowingsBorrowingsCurrentAndNoncurrentDetails" />
  <link:roleRef roleURI="http://hafnia.com/role/ShareholdersEquityOtherReservesCompositionDetails" xlink:type="simple" xlink:href="hafn-20260630.xsd#ShareholdersEquityOtherReservesCompositionDetails" />
  <link:roleRef roleURI="http://hafnia.com/role/CondensedConsolidatedStatementOfCashFlows" xlink:type="simple" xlink:href="hafn-20260630.xsd#CondensedConsolidatedStatementOfCashFlows" />
  <link:roleRef roleURI="http://hafnia.com/role/CondensedConsolidatedStatementOfChangesInEquityUnaudited" xlink:type="simple" xlink:href="hafn-20260630.xsd#CondensedConsolidatedStatementOfChangesInEquityUnaudited" />
  <link:roleRef roleURI="http://hafnia.com/role/CondensedConsolidatedBalanceSheet" xlink:type="simple" xlink:href="hafn-20260630.xsd#CondensedConsolidatedBalanceSheet" />
  <link:roleRef roleURI="http://hafnia.com/role/CondensedConsolidatedStatementOfComprehensiveIncomeUnaudited" xlink:type="simple" xlink:href="hafn-20260630.xsd#CondensedConsolidatedStatementOfComprehensiveIncomeUnaudited" />
  <link:calculationLink xlink:type="extended" xlink:role="http://hafnia.com/role/CondensedConsolidatedStatementOfComprehensiveIncomeUnaudited">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncome" xlink:label="ComprehensiveIncome" xlink:title="ComprehensiveIncome" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:label="OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:title="OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:label="OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:title="OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:to="OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:title="calculation: OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax to OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:label="OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:title="OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:label="OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:title="OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:title="calculation: OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax to OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_OtherComprehensiveIncomeBeforeTaxGainsLossesOnCashFlowHedges" xlink:label="OtherComprehensiveIncomeBeforeTaxGainsLossesOnCashFlowHedges" xlink:title="OtherComprehensiveIncomeBeforeTaxGainsLossesOnCashFlowHedges" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="OtherComprehensiveIncomeBeforeTaxGainsLossesOnCashFlowHedges" xlink:title="calculation: OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax to OtherComprehensiveIncomeBeforeTaxGainsLossesOnCashFlowHedges" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_OtherComprehensiveIncomeReclassificationToProfitOrLossNetOfTax" xlink:label="OtherComprehensiveIncomeReclassificationToProfitOrLossNetOfTax" xlink:title="OtherComprehensiveIncomeReclassificationToProfitOrLossNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="OtherComprehensiveIncomeReclassificationToProfitOrLossNetOfTax" xlink:title="calculation: OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax to OtherComprehensiveIncomeReclassificationToProfitOrLossNetOfTax" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:to="OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:title="calculation: OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax to OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ComprehensiveIncome" xlink:to="OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:title="calculation: ComprehensiveIncome to OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="ProfitLossBeforeTax" xlink:title="ProfitLossBeforeTax" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinanceIncomeCost" xlink:label="FinanceIncomeCost" xlink:title="FinanceIncomeCost" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_CapitalisedFinancingFeesWrittenOff" xlink:label="CapitalisedFinancingFeesWrittenOff" xlink:title="CapitalisedFinancingFeesWrittenOff" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="FinanceIncomeCost" xlink:to="CapitalisedFinancingFeesWrittenOff" xlink:title="calculation: FinanceIncomeCost to CapitalisedFinancingFeesWrittenOff" order="0.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="FinanceIncomeCost" xlink:to="InterestExpense" xlink:title="calculation: FinanceIncomeCost to InterestExpense" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinanceIncomeCost" xlink:label="OtherFinanceIncomeCost" xlink:title="OtherFinanceIncomeCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="FinanceIncomeCost" xlink:to="OtherFinanceIncomeCost" xlink:title="calculation: FinanceIncomeCost to OtherFinanceIncomeCost" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromInterest" xlink:label="RevenueFromInterest" xlink:title="RevenueFromInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="FinanceIncomeCost" xlink:to="RevenueFromInterest" xlink:title="calculation: FinanceIncomeCost to RevenueFromInterest" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossBeforeTax" xlink:to="FinanceIncomeCost" xlink:title="calculation: ProfitLossBeforeTax to FinanceIncomeCost" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:label="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:title="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossBeforeTax" xlink:to="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:title="calculation: ProfitLossBeforeTax to ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="ProfitLossFromOperatingActivities" xlink:title="ProfitLossFromOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmortisationExpense" xlink:label="AmortisationExpense" xlink:title="AmortisationExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossFromOperatingActivities" xlink:to="AmortisationExpense" xlink:title="calculation: ProfitLossFromOperatingActivities to AmortisationExpense" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:label="EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:title="EarningsBeforeInterestTaxesDepreciationAndAmortisation" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossProfit" xlink:label="GrossProfit" xlink:title="GrossProfit" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DistributionCosts" xlink:label="DistributionCosts" xlink:title="DistributionCosts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="GrossProfit" xlink:to="DistributionCosts" xlink:title="calculation: GrossProfit to DistributionCosts" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue" xlink:label="Revenue" xlink:title="Revenue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="GrossProfit" xlink:to="Revenue" xlink:title="calculation: GrossProfit to Revenue" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CostOfSales" xlink:label="CostOfSales" xlink:title="CostOfSales" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="GrossProfit" xlink:to="CostOfSales" xlink:title="calculation: GrossProfit to CostOfSales" order="2.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:to="GrossProfit" xlink:title="calculation: EarningsBeforeInterestTaxesDepreciationAndAmortisation to GrossProfit" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherExpenseByFunction" xlink:label="OtherExpenseByFunction" xlink:title="OtherExpenseByFunction" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:to="OtherExpenseByFunction" xlink:title="calculation: EarningsBeforeInterestTaxesDepreciationAndAmortisation to OtherExpenseByFunction" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_VesselOperatingExpenses" xlink:label="VesselOperatingExpenses" xlink:title="VesselOperatingExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:to="VesselOperatingExpenses" xlink:title="calculation: EarningsBeforeInterestTaxesDepreciationAndAmortisation to VesselOperatingExpenses" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_TechnicalManagementExpenses" xlink:label="TechnicalManagementExpenses" xlink:title="TechnicalManagementExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:to="TechnicalManagementExpenses" xlink:title="calculation: EarningsBeforeInterestTaxesDepreciationAndAmortisation to TechnicalManagementExpenses" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherIncome" xlink:label="OtherIncome" xlink:title="OtherIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:to="OtherIncome" xlink:title="calculation: EarningsBeforeInterestTaxesDepreciationAndAmortisation to OtherIncome" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_CharterHireExpenses" xlink:label="CharterHireExpenses" xlink:title="CharterHireExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:to="CharterHireExpenses" xlink:title="calculation: EarningsBeforeInterestTaxesDepreciationAndAmortisation to CharterHireExpenses" order="4.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossFromOperatingActivities" xlink:to="EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:title="calculation: ProfitLossFromOperatingActivities to EarningsBeforeInterestTaxesDepreciationAndAmortisation" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:label="DepreciationPropertyPlantAndEquipment" xlink:title="DepreciationPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossFromOperatingActivities" xlink:to="DepreciationPropertyPlantAndEquipment" xlink:title="calculation: ProfitLossFromOperatingActivities to DepreciationPropertyPlantAndEquipment" order="0.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:label="GainsLossesOnDisposalsOfNoncurrentAssets" xlink:title="GainsLossesOnDisposalsOfNoncurrentAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossFromOperatingActivities" xlink:to="GainsLossesOnDisposalsOfNoncurrentAssets" xlink:title="calculation: ProfitLossFromOperatingActivities to GainsLossesOnDisposalsOfNoncurrentAssets" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:label="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:title="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossFromOperatingActivities" xlink:to="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:title="calculation: ProfitLossFromOperatingActivities to ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" order="4.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossBeforeTax" xlink:to="ProfitLossFromOperatingActivities" xlink:title="calculation: ProfitLossBeforeTax to ProfitLossFromOperatingActivities" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLoss" xlink:to="ProfitLossBeforeTax" xlink:title="calculation: ProfitLoss to ProfitLossBeforeTax" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="IncomeTaxExpenseContinuingOperations" xlink:title="IncomeTaxExpenseContinuingOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLoss" xlink:to="IncomeTaxExpenseContinuingOperations" xlink:title="calculation: ProfitLoss to IncomeTaxExpenseContinuingOperations" order="2.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ComprehensiveIncome" xlink:to="ProfitLoss" xlink:title="calculation: ComprehensiveIncome to ProfitLoss" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://hafnia.com/role/CondensedConsolidatedBalanceSheet">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssets" xlink:label="NoncurrentAssets" xlink:title="NoncurrentAssets" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentAssets" xlink:label="OtherNoncurrentAssets" xlink:title="OtherNoncurrentAssets" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivablesDueFromJointVentures" xlink:label="NoncurrentReceivablesDueFromJointVentures" xlink:title="NoncurrentReceivablesDueFromJointVentures" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherNoncurrentAssets" xlink:to="NoncurrentReceivablesDueFromJointVentures" xlink:title="calculation: OtherNoncurrentAssets to NoncurrentReceivablesDueFromJointVentures" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:label="NoncurrentRestrictedCashAndCashEquivalents" xlink:title="NoncurrentRestrictedCashAndCashEquivalents" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherNoncurrentAssets" xlink:to="NoncurrentRestrictedCashAndCashEquivalents" xlink:title="calculation: OtherNoncurrentAssets to NoncurrentRestrictedCashAndCashEquivalents" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:label="InvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:title="InvestmentsInSubsidiariesJointVenturesAndAssociates" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherNoncurrentAssets" xlink:to="InvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:title="calculation: OtherNoncurrentAssets to InvestmentsInSubsidiariesJointVenturesAndAssociates" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:label="FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:title="FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherNoncurrentAssets" xlink:to="FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:title="calculation: OtherNoncurrentAssets to FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:label="NoncurrentDerivativeFinancialAssets" xlink:title="NoncurrentDerivativeFinancialAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherNoncurrentAssets" xlink:to="NoncurrentDerivativeFinancialAssets" xlink:title="calculation: OtherNoncurrentAssets to NoncurrentDerivativeFinancialAssets" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivables" xlink:label="NoncurrentReceivables" xlink:title="NoncurrentReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherNoncurrentAssets" xlink:to="NoncurrentReceivables" xlink:title="calculation: OtherNoncurrentAssets to NoncurrentReceivables" order="7.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="NoncurrentAssets" xlink:to="OtherNoncurrentAssets" xlink:title="calculation: NoncurrentAssets to OtherNoncurrentAssets" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:label="PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:title="PropertyPlantAndEquipmentIncludingRightofuseAssets" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherPropertyPlantAndEquipment" xlink:label="OtherPropertyPlantAndEquipment" xlink:title="OtherPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="OtherPropertyPlantAndEquipment" xlink:title="calculation: PropertyPlantAndEquipmentIncludingRightofuseAssets to OtherPropertyPlantAndEquipment" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Ships" xlink:label="Ships" xlink:title="Ships" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="Ships" xlink:title="calculation: PropertyPlantAndEquipmentIncludingRightofuseAssets to Ships" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_DryDockingAndScrubbers" xlink:label="DryDockingAndScrubbers" xlink:title="DryDockingAndScrubbers" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="DryDockingAndScrubbers" xlink:title="calculation: PropertyPlantAndEquipmentIncludingRightofuseAssets to DryDockingAndScrubbers" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssets" xlink:label="RightofuseAssets" xlink:title="RightofuseAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="RightofuseAssets" xlink:title="calculation: PropertyPlantAndEquipmentIncludingRightofuseAssets to RightofuseAssets" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="NoncurrentAssets" xlink:to="PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:title="calculation: NoncurrentAssets to PropertyPlantAndEquipmentIncludingRightofuseAssets" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:label="IntangibleAssetsOtherThanGoodwill" xlink:title="IntangibleAssetsOtherThanGoodwill" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="NoncurrentAssets" xlink:to="IntangibleAssetsOtherThanGoodwill" xlink:title="calculation: NoncurrentAssets to IntangibleAssetsOtherThanGoodwill" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Assets" xlink:to="NoncurrentAssets" xlink:title="calculation: Assets to NoncurrentAssets" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAssets" xlink:label="CurrentAssets" xlink:title="CurrentAssets" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentAssets" xlink:label="OtherCurrentAssets" xlink:title="OtherCurrentAssets" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_CashRetainedInTheCommercialPools" xlink:label="CashRetainedInTheCommercialPools" xlink:title="CashRetainedInTheCommercialPools" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherCurrentAssets" xlink:to="CashRetainedInTheCommercialPools" xlink:title="calculation: OtherCurrentAssets to CashRetainedInTheCommercialPools" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Cash" xlink:label="Cash" xlink:title="Cash" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherCurrentAssets" xlink:to="Cash" xlink:title="calculation: OtherCurrentAssets to Cash" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivables" xlink:label="TradeAndOtherCurrentReceivables" xlink:title="TradeAndOtherCurrentReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherCurrentAssets" xlink:to="TradeAndOtherCurrentReceivables" xlink:title="calculation: OtherCurrentAssets to TradeAndOtherCurrentReceivables" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Inventories" xlink:label="Inventories" xlink:title="Inventories" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherCurrentAssets" xlink:to="Inventories" xlink:title="calculation: OtherCurrentAssets to Inventories" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentReceivablesDueFromJointVentures" xlink:label="CurrentReceivablesDueFromJointVentures" xlink:title="CurrentReceivablesDueFromJointVentures" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherCurrentAssets" xlink:to="CurrentReceivablesDueFromJointVentures" xlink:title="calculation: OtherCurrentAssets to CurrentReceivablesDueFromJointVentures" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentDerivativeFinancialAssets" xlink:label="CurrentDerivativeFinancialAssets" xlink:title="CurrentDerivativeFinancialAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherCurrentAssets" xlink:to="CurrentDerivativeFinancialAssets" xlink:title="calculation: OtherCurrentAssets to CurrentDerivativeFinancialAssets" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:label="CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:title="CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherCurrentAssets" xlink:to="CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:title="calculation: OtherCurrentAssets to CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" order="7.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CurrentAssets" xlink:to="OtherCurrentAssets" xlink:title="calculation: CurrentAssets to OtherCurrentAssets" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsWithIndefiniteUsefulLife" xlink:label="IntangibleAssetsWithIndefiniteUsefulLife" xlink:title="IntangibleAssetsWithIndefiniteUsefulLife" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CurrentAssets" xlink:to="IntangibleAssetsWithIndefiniteUsefulLife" xlink:title="calculation: CurrentAssets to IntangibleAssetsWithIndefiniteUsefulLife" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Assets" xlink:to="CurrentAssets" xlink:title="calculation: Assets to CurrentAssets" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAndLiabilities" xlink:label="EquityAndLiabilities" xlink:title="EquityAndLiabilities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Liabilities" xlink:label="Liabilities" xlink:title="Liabilities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLiabilities" xlink:label="CurrentLiabilities" xlink:title="CurrentLiabilities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:label="CurrentTaxLiabilitiesCurrent" xlink:title="CurrentTaxLiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CurrentLiabilities" xlink:to="CurrentTaxLiabilitiesCurrent" xlink:title="calculation: CurrentLiabilities to CurrentTaxLiabilitiesCurrent" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermBorrowings" xlink:label="ShorttermBorrowings" xlink:title="ShorttermBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CurrentLiabilities" xlink:to="ShorttermBorrowings" xlink:title="calculation: CurrentLiabilities to ShorttermBorrowings" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:label="CurrentDerivativeFinancialLiabilities" xlink:title="CurrentDerivativeFinancialLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CurrentLiabilities" xlink:to="CurrentDerivativeFinancialLiabilities" xlink:title="calculation: CurrentLiabilities to CurrentDerivativeFinancialLiabilities" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="TradeAndOtherCurrentPayables" xlink:title="TradeAndOtherCurrentPayables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CurrentLiabilities" xlink:to="TradeAndOtherCurrentPayables" xlink:title="calculation: CurrentLiabilities to TradeAndOtherCurrentPayables" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Provisions" xlink:label="Provisions" xlink:title="Provisions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CurrentLiabilities" xlink:to="Provisions" xlink:title="calculation: CurrentLiabilities to Provisions" order="5.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Liabilities" xlink:to="CurrentLiabilities" xlink:title="calculation: Liabilities to CurrentLiabilities" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="NoncurrentLiabilities" xlink:title="NoncurrentLiabilities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LongtermBorrowings" xlink:label="LongtermBorrowings" xlink:title="LongtermBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="NoncurrentLiabilities" xlink:to="LongtermBorrowings" xlink:title="calculation: NoncurrentLiabilities to LongtermBorrowings" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Liabilities" xlink:to="NoncurrentLiabilities" xlink:title="calculation: Liabilities to NoncurrentLiabilities" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="EquityAndLiabilities" xlink:to="Liabilities" xlink:title="calculation: EquityAndLiabilities to Liabilities" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity" xlink:label="Equity" xlink:title="Equity" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TreasuryShares" xlink:label="TreasuryShares" xlink:title="TreasuryShares" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Equity" xlink:to="TreasuryShares" xlink:title="calculation: Equity to TreasuryShares" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapital" xlink:label="IssuedCapital" xlink:title="IssuedCapital" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Equity" xlink:to="IssuedCapital" xlink:title="calculation: Equity to IssuedCapital" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReserves" xlink:label="OtherReserves" xlink:title="OtherReserves" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Equity" xlink:to="OtherReserves" xlink:title="calculation: Equity to OtherReserves" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarnings" xlink:label="RetainedEarnings" xlink:title="RetainedEarnings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Equity" xlink:to="RetainedEarnings" xlink:title="calculation: Equity to RetainedEarnings" order="6.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="EquityAndLiabilities" xlink:to="Equity" xlink:title="calculation: EquityAndLiabilities to Equity" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://hafnia.com/role/CondensedConsolidatedStatementOfChangesInEquityUnaudited">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xlink:label="IncreaseDecreaseThroughTransactionsWithOwners" xlink:title="IncreaseDecreaseThroughTransactionsWithOwners" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaid" xlink:label="DividendsPaid" xlink:title="DividendsPaid" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="DividendsPaid" xlink:title="calculation: IncreaseDecreaseThroughTransactionsWithOwners to DividendsPaid" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_DisposalOfFairValueOtherComprehensiveIncomeInvestment" xlink:label="DisposalOfFairValueOtherComprehensiveIncomeInvestment" xlink:title="DisposalOfFairValueOtherComprehensiveIncomeInvestment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="DisposalOfFairValueOtherComprehensiveIncomeInvestment" xlink:title="calculation: IncreaseDecreaseThroughTransactionsWithOwners to DisposalOfFairValueOtherComprehensiveIncomeInvestment" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CancellationOfTreasuryShares" xlink:label="CancellationOfTreasuryShares" xlink:title="CancellationOfTreasuryShares" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="CancellationOfTreasuryShares" xlink:title="calculation: IncreaseDecreaseThroughTransactionsWithOwners to CancellationOfTreasuryShares" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:label="IncreaseDecreaseThroughExerciseOfOptions" xlink:title="IncreaseDecreaseThroughExerciseOfOptions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="IncreaseDecreaseThroughExerciseOfOptions" xlink:title="calculation: IncreaseDecreaseThroughTransactionsWithOwners to IncreaseDecreaseThroughExerciseOfOptions" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:label="IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:title="IncreaseDecreaseThroughSharebasedPaymentTransactions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:title="calculation: IncreaseDecreaseThroughTransactionsWithOwners to IncreaseDecreaseThroughSharebasedPaymentTransactions" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfTreasuryShares" xlink:label="PurchaseOfTreasuryShares" xlink:title="PurchaseOfTreasuryShares" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="PurchaseOfTreasuryShares" xlink:title="calculation: IncreaseDecreaseThroughTransactionsWithOwners to PurchaseOfTreasuryShares" order="4.0" weight="-1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://hafnia.com/role/CondensedConsolidatedStatementOfCashFlows">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:label="IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:title="IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="CashFlowsFromUsedInFinancingActivities" xlink:title="CashFlowsFromUsedInFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsForDebtIssueCosts" xlink:label="PaymentsForDebtIssueCosts" xlink:title="PaymentsForDebtIssueCosts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="PaymentsForDebtIssueCosts" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to PaymentsForDebtIssueCosts" order="9.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_RepurchaseOfTreasuryShares" xlink:label="RepurchaseOfTreasuryShares" xlink:title="RepurchaseOfTreasuryShares" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="RepurchaseOfTreasuryShares" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to RepurchaseOfTreasuryShares" order="8.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:title="PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" order="7.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_ProceedsFromSettlementOfDerivatives" xlink:label="ProceedsFromSettlementOfDerivatives" xlink:title="ProceedsFromSettlementOfDerivatives" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="ProceedsFromSettlementOfDerivatives" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to ProceedsFromSettlementOfDerivatives" order="10.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_InterestPaidToThirdParty" xlink:label="InterestPaidToThirdParty" xlink:title="InterestPaidToThirdParty" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="InterestPaidToThirdParty" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to InterestPaidToThirdParty" order="17.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:label="ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:title="ProceedsFromBorrowingsClassifiedAsFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to ProceedsFromBorrowingsClassifiedAsFinancingActivities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromExerciseOfOptions" xlink:label="ProceedsFromExerciseOfOptions" xlink:title="ProceedsFromExerciseOfOptions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="ProceedsFromExerciseOfOptions" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to ProceedsFromExerciseOfOptions" order="13.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:title="RepaymentsOfBorrowingsClassifiedAsFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to RepaymentsOfBorrowingsClassifiedAsFinancingActivities" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:label="DividendsPaidClassifiedAsFinancingActivities" xlink:title="DividendsPaidClassifiedAsFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="DividendsPaidClassifiedAsFinancingActivities" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to DividendsPaidClassifiedAsFinancingActivities" order="16.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:label="OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:title="OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" order="18.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:label="InterestPaidClassifiedAsFinancingActivities" xlink:title="InterestPaidClassifiedAsFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInFinancingActivities" xlink:to="InterestPaidClassifiedAsFinancingActivities" xlink:title="calculation: CashFlowsFromUsedInFinancingActivities to InterestPaidClassifiedAsFinancingActivities" order="11.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="CashFlowsFromUsedInFinancingActivities" xlink:title="calculation: IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges to CashFlowsFromUsedInFinancingActivities" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="CashFlowsFromUsedInInvestingActivities" xlink:title="CashFlowsFromUsedInInvestingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:title="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:title="calculation: CashFlowsFromUsedInInvestingActivities to PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" order="18.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:label="InterestReceivedClassifiedAsInvestingActivities" xlink:title="InterestReceivedClassifiedAsInvestingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="InterestReceivedClassifiedAsInvestingActivities" xlink:title="calculation: CashFlowsFromUsedInInvestingActivities to InterestReceivedClassifiedAsInvestingActivities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_ProceedsFromDisposalOfOtherInvestments" xlink:label="ProceedsFromDisposalOfOtherInvestments" xlink:title="ProceedsFromDisposalOfOtherInvestments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="ProceedsFromDisposalOfOtherInvestments" xlink:title="calculation: CashFlowsFromUsedInInvestingActivities to ProceedsFromDisposalOfOtherInvestments" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAdvancesAndLoansMadeToRelatedParties" xlink:label="CashAdvancesAndLoansMadeToRelatedParties" xlink:title="CashAdvancesAndLoansMadeToRelatedParties" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="CashAdvancesAndLoansMadeToRelatedParties" xlink:title="calculation: CashFlowsFromUsedInInvestingActivities to CashAdvancesAndLoansMadeToRelatedParties" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_DisposalOfPropertyPlantAndEquipmentAdjustments" xlink:label="DisposalOfPropertyPlantAndEquipmentAdjustments" xlink:title="DisposalOfPropertyPlantAndEquipmentAdjustments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="DisposalOfPropertyPlantAndEquipmentAdjustments" xlink:title="calculation: CashFlowsFromUsedInInvestingActivities to DisposalOfPropertyPlantAndEquipmentAdjustments" order="7.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_EquityInvestmentInJointVenture" xlink:label="EquityInvestmentInJointVenture" xlink:title="EquityInvestmentInJointVenture" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="EquityInvestmentInJointVenture" xlink:title="calculation: CashFlowsFromUsedInInvestingActivities to EquityInvestmentInJointVenture" order="11.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_RepaymentOfLoanByJointVentureCompany" xlink:label="RepaymentOfLoanByJointVentureCompany" xlink:title="RepaymentOfLoanByJointVentureCompany" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="RepaymentOfLoanByJointVentureCompany" xlink:title="calculation: CashFlowsFromUsedInInvestingActivities to RepaymentOfLoanByJointVentureCompany" order="8.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="CashFlowsFromUsedInInvestingActivities" xlink:title="calculation: IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges to CashFlowsFromUsedInInvestingActivities" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="CashFlowsFromUsedInOperatingActivities" xlink:title="CashFlowsFromUsedInOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:label="IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:title="IncomeTaxesPaidRefundClassifiedAsOperatingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperatingActivities" xlink:to="IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:title="calculation: CashFlowsFromUsedInOperatingActivities to IncomeTaxesPaidRefundClassifiedAsOperatingActivities" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperations" xlink:label="CashFlowsFromUsedInOperations" xlink:title="CashFlowsFromUsedInOperations" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_AdjustmentsForDecreaseIncreaseInTradeOtherReceivablesAndPrepayments" xlink:label="AdjustmentsForDecreaseIncreaseInTradeOtherReceivablesAndPrepayments" xlink:title="AdjustmentsForDecreaseIncreaseInTradeOtherReceivablesAndPrepayments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperations" xlink:to="AdjustmentsForDecreaseIncreaseInTradeOtherReceivablesAndPrepayments" xlink:title="calculation: CashFlowsFromUsedInOperations to AdjustmentsForDecreaseIncreaseInTradeOtherReceivablesAndPrepayments" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInIntangibleAssetsOtherThanGoodwill" xlink:label="ChangesInIntangibleAssetsOtherThanGoodwill" xlink:title="ChangesInIntangibleAssetsOtherThanGoodwill" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperations" xlink:to="ChangesInIntangibleAssetsOtherThanGoodwill" xlink:title="calculation: CashFlowsFromUsedInOperations to ChangesInIntangibleAssetsOtherThanGoodwill" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:label="AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:title="AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperations" xlink:to="AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:title="calculation: CashFlowsFromUsedInOperations to AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:label="AdjustmentsForDecreaseIncreaseInInventories" xlink:title="AdjustmentsForDecreaseIncreaseInInventories" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperations" xlink:to="AdjustmentsForDecreaseIncreaseInInventories" xlink:title="calculation: CashFlowsFromUsedInOperations to AdjustmentsForDecreaseIncreaseInInventories" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:label="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:title="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:label="AdjustmentsForDepreciationAndAmortisationExpense" xlink:title="AdjustmentsForDepreciationAndAmortisationExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="AdjustmentsForDepreciationAndAmortisationExpense" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to AdjustmentsForDepreciationAndAmortisationExpense" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_UnrealizedGainLossOnDerivative" xlink:label="UnrealizedGainLossOnDerivative" xlink:title="UnrealizedGainLossOnDerivative" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="UnrealizedGainLossOnDerivative" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to UnrealizedGainLossOnDerivative" order="10.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_ProvisionForClaims" xlink:label="ProvisionForClaims" xlink:title="ProvisionForClaims" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="ProvisionForClaims" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to ProvisionForClaims" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForFinanceIncomeCost" xlink:label="AdjustmentsForFinanceIncomeCost" xlink:title="AdjustmentsForFinanceIncomeCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="AdjustmentsForFinanceIncomeCost" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to AdjustmentsForFinanceIncomeCost" order="7.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:label="AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:title="AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:label="AdjustmentsForIncomeTaxExpense" xlink:title="AdjustmentsForIncomeTaxExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="AdjustmentsForIncomeTaxExpense" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to AdjustmentsForIncomeTaxExpense" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:label="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:title="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" order="11.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForInterestIncome" xlink:label="AdjustmentsForInterestIncome" xlink:title="AdjustmentsForInterestIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="AdjustmentsForInterestIncome" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to AdjustmentsForInterestIncome" order="6.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:label="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:title="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForSharebasedPayments" xlink:label="AdjustmentsForSharebasedPayments" xlink:title="AdjustmentsForSharebasedPayments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="AdjustmentsForSharebasedPayments" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to AdjustmentsForSharebasedPayments" order="12.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="ProfitLoss" xlink:title="calculation: CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to ProfitLoss" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperations" xlink:to="CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:title="calculation: CashFlowsFromUsedInOperations to CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="CashFlowsFromUsedInOperatingActivities" xlink:to="CashFlowsFromUsedInOperations" xlink:title="calculation: CashFlowsFromUsedInOperatingActivities to CashFlowsFromUsedInOperations" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="CashFlowsFromUsedInOperatingActivities" xlink:title="calculation: IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges to CashFlowsFromUsedInOperatingActivities" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://hafnia.com/role/ShareholdersEquityOtherReservesCompositionDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReserves" xlink:label="OtherReserves" xlink:title="OtherReserves" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfCashFlowHedges" xlink:label="ReserveOfCashFlowHedges" xlink:title="ReserveOfCashFlowHedges" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherReserves" xlink:to="ReserveOfCashFlowHedges" xlink:title="calculation: OtherReserves to ReserveOfCashFlowHedges" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfSharebasedPayments" xlink:label="ReserveOfSharebasedPayments" xlink:title="ReserveOfSharebasedPayments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherReserves" xlink:to="ReserveOfSharebasedPayments" xlink:title="calculation: OtherReserves to ReserveOfSharebasedPayments" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslation" xlink:label="ReserveOfExchangeDifferencesOnTranslation" xlink:title="ReserveOfExchangeDifferencesOnTranslation" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherReserves" xlink:to="ReserveOfExchangeDifferencesOnTranslation" xlink:title="calculation: OtherReserves to ReserveOfExchangeDifferencesOnTranslation" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CapitalReserve" xlink:label="CapitalReserve" xlink:title="CapitalReserve" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherReserves" xlink:to="CapitalReserve" xlink:title="calculation: OtherReserves to CapitalReserve" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_FairValueReserve" xlink:label="FairValueReserve" xlink:title="FairValueReserve" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OtherReserves" xlink:to="FairValueReserve" xlink:title="calculation: OtherReserves to FairValueReserve" order="5.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://hafnia.com/role/BorrowingsBorrowingsCurrentAndNoncurrentDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Borrowings" xlink:label="Borrowings" xlink:title="Borrowings" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermBorrowings" xlink:label="ShorttermBorrowings" xlink:title="ShorttermBorrowings" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_OtherCurrentLeaseLiabilities" xlink:label="OtherCurrentLeaseLiabilities" xlink:title="OtherCurrentLeaseLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ShorttermBorrowings" xlink:to="OtherCurrentLeaseLiabilities" xlink:title="calculation: ShorttermBorrowings to OtherCurrentLeaseLiabilities" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_CurrentPortionOfCurrentBankBorrowings" xlink:label="CurrentPortionOfCurrentBankBorrowings" xlink:title="CurrentPortionOfCurrentBankBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ShorttermBorrowings" xlink:to="CurrentPortionOfCurrentBankBorrowings" xlink:title="calculation: ShorttermBorrowings to CurrentPortionOfCurrentBankBorrowings" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_SaleAndLeasebackLiabilitiesCurrent" xlink:label="SaleAndLeasebackLiabilitiesCurrent" xlink:title="SaleAndLeasebackLiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ShorttermBorrowings" xlink:to="SaleAndLeasebackLiabilitiesCurrent" xlink:title="calculation: ShorttermBorrowings to SaleAndLeasebackLiabilitiesCurrent" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Borrowings" xlink:to="ShorttermBorrowings" xlink:title="calculation: Borrowings to ShorttermBorrowings" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LongtermBorrowings" xlink:label="LongtermBorrowings" xlink:title="LongtermBorrowings" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_NoncurrentPortionOfNoncurrentBankBorrowings" xlink:label="NoncurrentPortionOfNoncurrentBankBorrowings" xlink:title="NoncurrentPortionOfNoncurrentBankBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="LongtermBorrowings" xlink:to="NoncurrentPortionOfNoncurrentBankBorrowings" xlink:title="calculation: LongtermBorrowings to NoncurrentPortionOfNoncurrentBankBorrowings" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_OtherNonCurrentLeaseLiabilities" xlink:label="OtherNonCurrentLeaseLiabilities" xlink:title="OtherNonCurrentLeaseLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="LongtermBorrowings" xlink:to="OtherNonCurrentLeaseLiabilities" xlink:title="calculation: LongtermBorrowings to OtherNonCurrentLeaseLiabilities" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_SaleAndLeasebackLiabilitiesNonCurrent" xlink:label="SaleAndLeasebackLiabilitiesNonCurrent" xlink:title="SaleAndLeasebackLiabilitiesNonCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="LongtermBorrowings" xlink:to="SaleAndLeasebackLiabilitiesNonCurrent" xlink:title="calculation: LongtermBorrowings to SaleAndLeasebackLiabilitiesNonCurrent" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="Borrowings" xlink:to="LongtermBorrowings" xlink:title="calculation: Borrowings to LongtermBorrowings" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://hafnia.com/role/SegmentInformationOperatingSegmentsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="ProfitLossBeforeTax" xlink:title="ProfitLossBeforeTax" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" xlink:label="OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" xlink:title="OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossProfit" xlink:label="GrossProfit" xlink:title="GrossProfit" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue" xlink:label="Revenue" xlink:title="Revenue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="GrossProfit" xlink:to="Revenue" xlink:title="calculation: GrossProfit to Revenue" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CostOfSales" xlink:label="CostOfSales" xlink:title="CostOfSales" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="GrossProfit" xlink:to="CostOfSales" xlink:title="calculation: GrossProfit to CostOfSales" order="2.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" xlink:to="GrossProfit" xlink:title="calculation: OperatingIncomeBeforeInterestTaxDepreciationAndAmortization to GrossProfit" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherIncome" xlink:label="OtherIncome" xlink:title="OtherIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" xlink:to="OtherIncome" xlink:title="calculation: OperatingIncomeBeforeInterestTaxDepreciationAndAmortization to OtherIncome" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_CharterHireExpenses" xlink:label="CharterHireExpenses" xlink:title="CharterHireExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" xlink:to="CharterHireExpenses" xlink:title="calculation: OperatingIncomeBeforeInterestTaxDepreciationAndAmortization to CharterHireExpenses" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_VesselOperatingExpenses" xlink:label="VesselOperatingExpenses" xlink:title="VesselOperatingExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" xlink:to="VesselOperatingExpenses" xlink:title="calculation: OperatingIncomeBeforeInterestTaxDepreciationAndAmortization to VesselOperatingExpenses" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_TechnicalManagementExpenses" xlink:label="TechnicalManagementExpenses" xlink:title="TechnicalManagementExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" xlink:to="TechnicalManagementExpenses" xlink:title="calculation: OperatingIncomeBeforeInterestTaxDepreciationAndAmortization to TechnicalManagementExpenses" order="4.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossBeforeTax" xlink:to="OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" xlink:title="calculation: ProfitLossBeforeTax to OperatingIncomeBeforeInterestTaxDepreciationAndAmortization" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationExpense" xlink:label="DepreciationExpense" xlink:title="DepreciationExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="ProfitLossBeforeTax" xlink:to="DepreciationExpense" xlink:title="calculation: ProfitLossBeforeTax to DepreciationExpense" order="2.0" weight="-1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://hafnia.com/role/NonifrsMeasuresReconciliationOfAdjustedEbitdaToProfitLossDetails">
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:label="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:title="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="ProfitLoss" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to ProfitLoss" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="IncomeTaxExpenseContinuingOperations" xlink:title="IncomeTaxExpenseContinuingOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="IncomeTaxExpenseContinuingOperations" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to IncomeTaxExpenseContinuingOperations" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:label="DepreciationPropertyPlantAndEquipment" xlink:title="DepreciationPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="DepreciationPropertyPlantAndEquipment" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to DepreciationPropertyPlantAndEquipment" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmortisationExpense" xlink:label="AmortisationExpense" xlink:title="AmortisationExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="AmortisationExpense" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to AmortisationExpense" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:label="GainsLossesOnDisposalsOfNoncurrentAssets" xlink:title="GainsLossesOnDisposalsOfNoncurrentAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="GainsLossesOnDisposalsOfNoncurrentAssets" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to GainsLossesOnDisposalsOfNoncurrentAssets" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:label="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:title="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromInterest" xlink:label="RevenueFromInterest" xlink:title="RevenueFromInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="RevenueFromInterest" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to RevenueFromInterest" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="InterestExpense" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to InterestExpense" order="8.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="hafn-20260630.xsd#hafn_CapitalisedFinancingFeesWrittenOff" xlink:label="CapitalisedFinancingFeesWrittenOff" xlink:title="CapitalisedFinancingFeesWrittenOff" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="CapitalisedFinancingFeesWrittenOff" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to CapitalisedFinancingFeesWrittenOff" order="10.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinanceIncomeCost" xlink:label="OtherFinanceIncomeCost" xlink:title="OtherFinanceIncomeCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="OtherFinanceIncomeCost" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to OtherFinanceIncomeCost" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:label="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:title="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:to="ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:title="calculation: AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization to ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" order="6.0" weight="-1.0" />
  </link:calculationLink>
</link:linkbase>
