Loan Calculator

The Loan Calculator estimates payments for amortized, deferred or bond-style loans from principal, rate and term. QuickCalculators shows the monthly payment or maturity amount, total interest where it applies, and an amortization schedule for regular-payment loans.

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Results update as you type. Figures are estimates, not advice.

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    Assumptions
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      Calculate your loan payment

      Stacked bar schedule across 5 periods: Period 1, Period 2, Period 3, Period 4, Period 5InterestPrincipalPeriod 1Period 2Period 3Period 4Period 5
      Calculate your loan payment.

      Calculating a loan payment starts with principal, annual rate and term. The Loan Calculator applies the mode selected and returns the primary cash figure for that structure. Amortized mode produces a level monthly payment. Deferred mode produces a maturity balance.

      Bond-style mode solves the present amount that grows to a stated face value. QuickCalculators keeps each mode on the same page so the structures can be compared without switching tools.

      Fees, insurance and taxes outside the loan math need separate entry when budgeting.

      Calculate an amortized loan

      Line chart showing a declining value over time, from 84.3 to 084.30
      Calculate an amortized loan.

      Calculating an amortized loan spreads principal and interest into equal payments over the term. The Loan Calculator uses the fixed-payment formula and builds a full schedule. Each payment covers interest first, then principal. Early rows show heavy interest; later rows show heavy principal.

      A $20,000 loan at 7% for five years produces a level monthly payment and a zero ending balance under this model. QuickCalculators reports total interest and total payment beside the schedule.

      Amortized loans are the default for most consumer installment credit.

      Calculate a deferred loan

      Concept diagram: Inputs leads to a deferred loan leads to ResultInputsa deferred loanResult
      Calculate a deferred loan.

      Calculating a deferred loan compounds the balance until maturity with no required interim payments. The Loan Calculator grows principal at the stated rate and reports the amount due at the end. A $10,000 deferred loan at 5% for three years reaches $11,576.25 at maturity under annual compounding in the reference fixture.

      Interest is the gap between that maturity amount and the original principal. QuickCalculators states the no-payment assumption clearly.

      Deferred structures suit some education or promotional products; confirm compounding frequency with the contract.

      Calculate a bond-style loan

      Concept diagram: Inputs leads to a bond-style loan leads to ResultInputsa bond-style loanResult
      Calculate a bond-style loan.

      Calculating a bond-style loan starts from a predetermined final value and solves the present price that grows to it at the given rate and term. The Loan Calculator treats face value, rate and years as inputs. The present price is lower than face when the rate is positive, because time value discounts the future lump sum.

      QuickCalculators reports that present amount so the financing picture matches a known payoff.

      Coupon bonds with periodic interest use a different pricing model on the Bond Calculator page.

      Read the loan amortization schedule

      Line chart showing a declining value over time, from 72.3 to 072.30
      Read the loan amortization schedule.

      Reading the loan amortization schedule lists payment, interest, principal and balance by period for amortized loans. The Loan Calculator produces that table so the mix of interest and principal is visible. Deferred and bond-style modes emphasize maturity or present value instead of a monthly table.

      QuickCalculators keeps schedule output on the amortized path where it applies.

      Read the disclaimer

      Concept diagram: Inputs leads to disclaimer leads to ResultInputsdisclaimerResult
      Read the disclaimer.

      QuickCalculators labels Loan Calculator results as estimates for information only. The Loan Calculator is not credit or financial advice. Loan contracts set fees, compounding and payment due dates. Confirm with statements and a professional before acting.

      Correct a common misconception: every loan uses the same payment formula

      Formula PMT = P × r / (1 − (1+r)⁻ⁿ), with variables: P is principal, r is rate, n is periodsPMT = P × r / (1 − (1+r)⁻ⁿ)Pprincipalrratenperiods
      Correct a common misconception: every loan uses the same payment formula.

      A common misconception is that every loan uses the same monthly payment formula. Deferred loans may charge nothing until maturity, and bond-style problems solve for present price. The Loan Calculator separates those modes so the formula matches the structure.

      Frequently asked questions

      How does the Loan Calculator work?

      The Loan Calculator takes principal, rate and term (or face value in bond mode), then applies amortized, deferred or bond-style maths and returns the matching primary result.

      What is an amortized loan?

      An amortized loan is repaid with regular payments that cover interest and principal until the balance reaches zero. The Loan Calculator builds that schedule in amortized mode.

      What is a deferred loan?

      A deferred loan accrues interest with no required payments until maturity, when principal plus interest is due. The Loan Calculator reports that maturity amount.

      How is a bond-style loan different?

      A bond-style loan solves the present price for a known final value at a rate and term. The Loan Calculator uses face, rate and years for that mode.

      Does the schedule include fees?

      The Loan Calculator schedule models interest and principal for the loan amount entered. Origination fees belong on the Personal Loan Calculator or as a separate cash cost.

      Summarize the Loan Calculator

      Concept diagram: Inputs leads to Summarize Loan Calculator leads to ResultInputsSummarize LoanCalculatorResult
      Summarize the Loan Calculator.

      The Loan Calculator covers amortized payments, deferred maturity amounts and bond-style present prices from shared rate and term inputs. QuickCalculators shows schedules where they apply, keeps totals exact to the cent, and labels results as estimates rather than offers of credit.