APY Calculator
Free APY calculator for nominal interest rates with daily, monthly, quarterly, or annual compounding, plus projected balance growth.
Annual percentage yield (APY) shows the effective one-year return after compounding. It makes deposit accounts with different compounding schedules easier to compare.
This estimate assumes a fixed rate, no withdrawals, no fees, and interest credited at the selected frequency. Confirm the institution's official APY and account terms before opening an account.
Frequently asked questions
What is the difference between APR and APY?
A stated annual rate does not include intra-year compounding, while APY reflects it.
Does a higher compounding frequency increase APY?
With the same positive stated rate, more frequent compounding generally produces a slightly higher APY.
Are bank fees included?
No. Monthly fees, early-withdrawal penalties, taxes, and changing rates can reduce the actual return.