Compound Interest Calculator
Calculate how your savings or investment grows with compound interest. Enter your principal amount, interest rate, time period and compounding frequency to see the final value and total interest earned.
How to use Compound Interest Calculator
- Enter the Principal — your initial investment or savings amount.
- Enter the annual Interest Rate as a percentage (e.g. 7 for 7%).
- Enter the Time Period in years.
- Select the Compounding Frequency — annually, quarterly, monthly or daily.
- Click Calculate to see your final balance and total interest earned.
Formula: A = P(1 + r/n)^(nt) — where P is principal, r is rate, n is compounding periods per year, t is time in years.