Free and anonymous calculation

Calculate a loan interest rate

Enter principal, monthly payment and term. The tool reverse-calculates an estimated nominal annual rate.

Calculation resultEnter values and calculate
Read the result correctly

Without fees and insurance, the estimated nominal rate does not show the full cost of borrowing.

How is the rate solved?

The tool iteratively finds the rate that produces the entered annuity payment.

Why can the result differ?

Payment dates, fees, insurance and schedule method can change the result.

Frequently asked questions

Can a rate be found from a payment?

Yes, when the principal and term are also known.

Is this APR?

No, it is an estimated nominal rate.

What does a zero result mean?

The total entered payments do not exceed principal.

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