Effective annual rate (APY) calculator

Enter a nominal annual rate (APR) and choose how often it compounds to see the effective annual rate (APY) and how much compounding adds. Nothing is uploaded.

Nominal annual rate (APR, %)

Compounding frequency

—Effective annual rate (APY)

—Nominal rate

—Compounding adds

Everything runs in your browser. No upload, no sign-up.

How it works

STEP 1

Enter the rate

Type the nominal annual rate (APR) the bank or lender quotes.

STEP 2

Pick how it compounds

Choose monthly, daily, continuously or another frequency.

STEP 3

See the true rate

Get the effective annual rate (APY) and how much compounding adds. All private.