Amortization Calculator
Year-by-year principal, interest and balance. Change the numbers and the result updates instantly.
How it works
An amortization schedule shows how each payment is split between interest and principal. Early payments are mostly interest; later ones are mostly principal. The monthly payment stays the same on a fixed-rate loan, while the balance falls slowly at first and faster over time.
Example
Example: a $300,000 loan at 6.5% for 30 years has a payment of $1,896.20. In the first year about $19,400 of your payments is interest and only about $3,400 reduces the loan.
Tips
- Change one input at a time to see what moves the result most.
- Use realistic rates. Check current averages before you decide.
- Results are estimates and do not replace advice from a licensed professional.
Frequently asked questions
Is this calculator free?
Yes. There is no sign-up and nothing is stored on our servers; the math runs in your browser.
How accurate is it?
It uses standard formulas, but real offers include fees, rate changes and taxes that can differ. Treat the result as an estimate.
Sources and method
Page last updated November 2026. See our editorial policy and disclaimer.