Loan payment calculator

Scenario A

Loan amount (USD)

Annual interest rate (nominal %)

Term

Term unit

Payment frequency

Annual rate ÷ payments per year. Payments are due at the end of equal model periods; fees and APR are excluded.

Extra payments

Extra per month (USD)

One-time extra (USD)

At payment number

Extras reduce principal after the regular payment. The regular payment stays fixed and the loan can finish earlier.

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Amortization schedule — all payments

All amounts in USD. Half-up rounding to cents.
Payment	Opening	Interest	Regular	Recurring extra	One-time extra	Total	Principal	Closing

Fixed nominal annual rate, end-of-period payments and rounded cents. Model estimate; a lender’s daily interest, fees and rounding can differ.

Privacy choices

Saved settings and grouped usage

Save stores your settings on this device for 90 days. Files are separate downloads. Ads, when enabled, run on this page and can technically access inputs and local storage. Privacy details.

Optionally share broad amount, rate and term ranges, payment frequency, extras and feature counts to improve this tool. No exact loan values or visitor ID go to our product statistics; separate monthly category totals have no fixed expiry. Earlier totals cannot be linked back to you. Your choice lasts 180 days and you can withdraw it here. Calculating and downloading work either way.

How this loan is calculated

This calculator models a new loan with a fixed interest rate. Each payment covers rounded interest first and then reduces principal. The final payment clears the remaining balance exactly.

Formula and rounding

The payment is P × i ÷ (1 − (1 + i)⁻ⁿ), where i is the nominal annual rate divided by payments per year. At zero interest it is P ÷ n. The regular payment and every interest row are rounded half-up to cents; totals are summed from the schedule.

There are no calendar dates, daily-interest calculations, fees, escrow, penalties or statutory APR calculations.