About this tool
Enter a loan amount, annual interest rate and duration. Review the monthly payment, total interest and repayment schedule. Optional extra principal shows how much sooner the balance reaches zero. Save a scenario before changing the rate or term to compare.
Fixed interest rate, equal monthly periods, no fees or penalties. Enter the interest rate, not APR with fees. Calculations keep full precision; displayed amounts are rounded. Actual lender schedules may differ. Extra payments reduce principal. A one-time payment is applied after the selected regular payment, or immediately for payment 0. This is a monthly model, not a biweekly payment schedule.
Use whole months, up to 100 years. Amounts are limited to 1 trillion and results to 1 quadrillion. All amounts must use the same currency.
Your numbers stay in this browser. Nothing is uploaded or saved after you leave.