Calculation method
Compares the scheduled loan with a monthly principal-and-interest payment increased by the extra amount. Both are simulated month by month.
Home · United States
Extra Mortgage Payment Calculator
Estimate potential time and interest savings from paying extra principal. Use the example values or enter your own numbers to explore an estimate.
Currency formatting only—not an exchange-rate conversion. No country-specific tax or government rules are applied.
This regional view uses the same general formula as the universal calculator.
Your results
See a clear estimate
Enter your details to see a personalized calculation, a simple projection, and the assumptions behind it.
Free to use
No sign-up required
No personal data stored
Assumptions & limits
- Extra payment goes directly to principal.
- No prepayment penalties or lender-specific rules.
- Basis: user-entered values.
- Basis: standard fixed-payment and time-value-of-money formulas.
Tax or legal rule year: Not applicable — no country-specific rules are used.