Loan Calculator
Estimate a fixed monthly payment, payment count, total paid, and total interest from principal, APR, and years. Zero APR is allowed. This is not a lender quote.
1. Enter values
%
2. Result
Estimated monthly payment
489.15
60
29,349.22
4,349.22
60 payments · total 29,349.22 · interest 4,349.22
3. Summary
How is it calculated?
Monthly payment uses standard amortization: r = APR / 12 / 100 and n = round(years × 12). If the rate is 0, payment is principal divided by n. This is not a lender quote.
Common use cases
Car loans
Estimate a fixed monthly payment for an auto term.
Mortgages
Sketch a 15- or 30-year principal-and-interest payment.
Student loans
See how rate and years change the monthly figure.
Personal loans
Compare a shorter term against a lower payment.
Zero APR
A 0% rate splits principal evenly across the months.
What-if quotes
Change principal or APR and read total interest immediately.
Your data stays private
Loan amounts and rates are calculated locally in your browser. Nothing is uploaded or stored on a server.
About fixed-rate loan payments
A fully amortizing loan splits each monthly payment into interest on the remaining balance and principal reduction. This page estimates the payment with the standard formula used by many consumer calculators: monthly rate r = APR / 12 / 100, n = round(years × 12) payments, M = P r / (1 − (1+r)^−n). If APR is 0, the payment is simply principal divided by n. The summary also shows total paid and total interest (n × M − P).
This is not a bank quote. Lenders add origination fees, mortgage insurance, taxes, and day-count conventions (actual/365 vs 30/360). Adjustable rates, extra principal, and biweekly plans change the path. Rounding n means 5.25 years is 63 months, not 63.00 exactly from a day count. Currency is a plain number — there is no FX.
Compare this payment with Compound Interest Calculator if you are saving rather than borrowing: compounding grows a deposit; amortization shrinks a debt. All figures stay in the browser. We do not store balances.
How to estimate a loan payment
Enter principal, APR, and years
Use the amount financed, the nominal annual rate, and the term in years (decimals allowed).
Read the monthly figure
Payment, payment count, total paid, and total interest update live. Zero APR is allowed.
Copy the payment
Examples include a car loan, a 30-year mortgage, and a 0% term. Calculate scrolls to the result.
Quotes stay private
We never send principal or rate to a server. Confirm any decision with a lender.
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Loan Calculator FAQ
We use a fully amortizing formula: monthly rate r = APR / 12 / 100, n = round(years × 12) payments, M = P r / (1 − (1+r)^−n). If APR is 0, the payment is principal / n. The page also shows total paid (n × M) and total interest (total paid − principal). Years can be a decimal; 5.25 years is 63 months.
Lenders add origination fees, insurance, taxes, and day-count conventions. Adjustable rates, extra principal, and biweekly plans change the path. Currency is a bare number with no FX. Treat the figure as an estimate and confirm with a lender before you sign.
No. Principal, rate, and term are calculated locally in your browser. Nothing is uploaded or stored on a server.