FinanceTools

Loan Payment Formula Explained with Example

The loan payment formula helps you calculate how much you need to pay every month. It depends on the loan amount, interest rate, and loan term.

The formula

Monthly Payment = P × r × (1 + r)^n / ((1 + r)^n − 1)

What each part means

  • P = loan amount
  • r = monthly interest rate
  • n = number of payments

Example

If you borrow $100,000 at 5% annual interest for 30 years, your monthly payment can be calculated using this formula.

Use the calculator

Instead of calculating manually, use the loan calculator to get instant results.

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