Compound Interest Calculator
Common Interest Rates
Common Time Periods
Guide & Explanations
How to use
- Enter principal amount: The initial amount you invest or borrow
- Specify interest rate: The annual interest rate in percentage
- Set time period: The duration of the investment or loan in years
- Select compounding frequency: How often interest is calculated and added
- Click Calculate: View your results showing principal, interest earned, and final amount
- View formula: Click "Show Formula" to see the detailed calculation steps
Tip: More frequent compounding (monthly, daily) results in higher returns than less frequent compounding (annually) for the same interest rate.