Use this calculator to estimate how savings or investments may grow over time when interest is earned on both the original amount and accumulated interest. Enter an initial amount, an interest rate, a contribution amount, and a time period to explore potential growth.
Compound Interest Calculator
Interactive tool
Estimate your savings growth
Adjust the amounts and assumptions to see how your savings could grow. Results are estimates, not a guarantee of returns.
Estimated final balance$0
Total contributions$0
Estimated interest earned$0
Assumes a constant annual rate compounded monthly, with contributions made at the end of each month. Taxes, fees, inflation, and changing returns are not included.
Please enter valid, non-negative amounts and a time period between 1 and 80 years.