About the APY Calculator
Convert an interest rate (APR) to annual percentage yield (APY) for any compounding frequency.
Also known as: annual percentage yield, apr to apy, apy formula, effective yield.
How to use this calculator
- Enter nominal rate (apr), 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
APY = (1 + r/n)ⁿ − 1
Worked example
Using the values pre-filled in the calculator above:
- Nominal rate (APR) = 5 %
- Compounding: Monthly
the calculator returns:
- APY: 5.1162%
- Continuous compounding APY: 5.1271%