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APY Calculator

Calculate APY and compound interest earnings.

APY

5.12%

Interest Earned

+$2,833.59

Final Balance

$12,833.59

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About APY Calculator

Calculate Annual Percentage Yield (APY) and compound interest. Enter principal, interest rate, and compounding frequency to see your earnings over time.

How to Use

  1. 1

    Enter principal

    Enter the initial investment amount.

  2. 2

    Set interest rate

    Enter the annual interest rate (APR).

  3. 3

    Choose compounding

    Select how often interest compounds (daily, monthly, quarterly, annually).

  4. 4

    View results

    See APY, total interest earned, and final balance.

Examples

Monthly compounding
Input: $10,000 at 5% monthly
Output: APY: 5.12%, Balance: $10,511.62

Frequently Asked Questions

What is APY?
Annual Percentage Yield (APY) is the effective annual rate of return taking into account the effect of compounding interest.
How is APY calculated?
APY = (1 + r/n)^n - 1, where r is the nominal rate and n is the number of compounding periods per year.
What's the difference between APR and APY?
APR is the simple interest rate. APY accounts for compounding, so it's always equal to or higher than APR.