Interest Rate Calculator
Solve for the implied interest rate of a loan given payment, amount and term.
Reverse-Engineer Your Interest Rate
If you know the loan amount, the monthly payment and the number of months, you can solve for the interest rate. This is useful for verifying a quoted rate or comparing offers where only the payment is given.
FAQ — Interest Rate Calculator
Why is the result an APR?
We multiply the monthly rate by 12 to express it as an annual percentage rate.