FINANCE · FREE TOOL
Payment payoff calculator
Find how many monthly payments are needed to repay a fixed-rate balance.
Your inputs
Enter your values, then calculate.
Decimal-point numbers; displayed rounding does not change internal values. Calculations stay on this device.
YOUR RESULT
Make the numbers clear.
Save calculation JSON ↓Calculation breakdown
Scroll sideways to see every column. You can also focus the table and use the arrow keys.
How this calculation works
A monthly payment must exceed the first period’s interest. Payments apply to interest then principal; the final payment is reduced to the amount actually due. This tool solves payoff duration, while the loan calculator solves payment size.
Reference: method and limitations. Method reviewed October 22, 2026.
Check the assumptions
Use one currency consistently; financial outputs use that same currency, except the U.S. tax tool specifically uses USD. Financial models use your assumptions, not live rates or personalized financial advice. Check the result against your contract or the applicable tax rules.