APY Calculator
Calculate annual percentage yield from an interest rate and compounding frequency.
Optional deposit and time period show interest earned and ending balance.
Annual percentage yield4.49%
Interest earned$448.98
Ending balance$10,448.98
Simple rate4.4%
| Compounding | Monthly |
|---|
Assumptions
- APY assumes interest remains on deposit for a full year.
How this calculator works
Formula used
APY = (1 + rate / compounding periods) ^ periods - 1.
Example calculation
A 4.4% nominal rate compounded monthly has a slightly higher APY than 4.4% because interest earns interest.
APY Calculator FAQ
Are these retirement and investment calculators financial advice?
No. They are educational planning tools for U.S. users and do not replace advice from a qualified financial, tax, legal, or investment professional.
Why can actual investment results be different?
Actual results can differ because market returns vary, taxes change, fees apply, inflation shifts, and account rules may limit contributions or withdrawals.