APR to APY calculator

APR and compounds per year. Annual percentage yield.

About this APR to APY calculator

Convert a nominal APR to an effective APY for a compounding frequency you choose — the apples-to-apples yield number ads often quote.

APY = (1 + APR/n)^n − 1, with APR as a decimal and n compounds per year. Daily uses n=365 in this tool’s default unless the page states otherwise.

Not a loan APR disclosure engine (those include fees under Reg Z). Credit-card and mortgage “APR” labels are not always the same as this nominal-rate conversion.

FAQ

What is the formula? APY = (1 + APR/n)^n − 1. APR is the nominal annual rate. n is compounds per year.

What if n is 1? APY equals APR.

Is this a loan quote? No. It is the standard nominal-to-effective conversion.