Calculator

APR vs APY Calculator (Convert Interest Rates)

APR is a nominal annual rate; APY is what you actually earn (or pay) after compounding. Convert between the two for any compounding frequency to compare offers apples-to-apples.

Inputs

%

Results

APR (input)
5.0000%
APY (effective)
5.1162%
Difference
0.1162%

Includes inputs, results, and schedule.

APR to APY formula

APY = (1 + APR/n)^n − 1, where n is the number of compounding periods per year. As n grows, APY approaches e^APR − 1, the limit of continuous compounding.

Frequently asked questions

Which should I compare when shopping for a savings account?

Compare APY. It reflects the effect of compounding over a year, so it's the true return you'll earn.

Which should I compare on a loan?

Compare APR. It includes finance charges beyond the note rate and gives you a standardized annual cost.

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