Amortization Calculator

Calculate payment, total interest, payoff time, and a month-by-month amortization schedule with optional extra payments.

Loan principal

APR (%)

Term (years)

Extra monthly payment

—Required payment

—Total interest

—Total payments

—Payoff months

—Extra-payment savings

How to use this Amortization Calculator

Build a detailed amortization schedule for a fixed-rate loan. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.