How to interpret this estimate

Estimate effective annual yield from a nominal rate. APY equals one plus the nominal rate divided by compounding periods, raised to the number of periods, minus one.

When this result is useful

Use it to compare nominal rates with effective annual yield across different compounding frequencies.

Common limitations

Assumes the stated rate and compounding frequency remain unchanged for one year. Fees, withdrawals, taxes, and institution-specific balance rules are excluded.

This calculator uses the selected inputs and the fixed formula behind the tool to produce an estimate. Review the units, assumptions, and result labels before using the output for planning.

Finance results are educational planning estimates only. They may not include fees, taxes, inflation, rate changes, product terms, or every detail that can affect a real financial decision.

Read the financial disclaimer for more context.