APY Return Calculator
Enter your deposit, the APY and how long you will keep the money to see what it grows to.
Ending balance
%
Formula
APY already includes compounding, so the balance grows by the APY once for each year.
Ending balance = P × (1 + APY)t
Interest earned = Ending balance − P
Interest earned = Ending balance − P
Here P is your deposit, APY is written as a decimal (4.5% = 0.045) and t is the number of years.
Examples
| Deposit | APY | Years | Ending balance | Interest |
|---|---|---|---|---|
| 1,000 | 5% | 1 | 1,050.00 | 50.00 |
| 10,000 | 4.5% | 3 | 11,411.66 | 1,411.66 |
| 5,000 | 3% | 5 | 5,796.37 | 796.37 |
| 25,000 | 5.25% | 10 | 41,702.40 | 16,702.40 |
Common questions
How do you calculate your return from APY?
Multiply your deposit by (1 + APY) once for every year. For example, 10,000 at 4.5% APY for 3 years = 10,000 × 1.045³ = 11,411.66.
Why use APY instead of the interest rate?
APY includes the effect of compounding, so it shows the real yearly return. Two accounts with the same rate can have different APYs.
Is the result guaranteed?
No. This is an estimate that assumes the APY stays the same and you make no deposits or withdrawals. Many savings rates change over time.