About the Nominal Interest Rate Calculator
Convert an effective annual rate back to the nominal (stated) rate for a given compounding frequency.
Also known as: effective to nominal, nominal rate, stated rate.
How to use this calculator
- Enter effective annual rate, compounding.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
i = n·((1 + EAR)^(1/n) − 1)
Worked example
Using the values pre-filled in the calculator above:
- Effective annual rate = 12.68 %
- Compounding: Monthly
the calculator returns:
- Nominal rate: 11.99776%