APR to APY Calculator
Convert a nominal APR into the effective annual yield.
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How it works
APY = (1 + APR ÷ n)^n − 1, where n is how many times interest compounds per year. A 12% APR compounded monthly equals an APY of about 12.68%. More frequent compounding raises the APY slightly, so compare accounts and loans by APY rather than APR.
FAQ
Is this calculator free?
Yes. No signup is needed and nothing you enter is stored.
Is the result exact?
Results are rounded for display. For financial, medical, or legal decisions, confirm with a professional.
Do my numbers leave my device?
No. The calculation runs in your browser.