Compound Interest Calculator | Fast Browser Calculator
Use this free Compound Interest Calculator to calculate accurate results. Compare scenarios, plan confidently, and get reliable numbers instantly on desktop and mobile.
Total Future Value
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Total Principal Invested
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Total Interest Earned
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What is Compound Interest?
Compound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on interest. It is the result of reinvesting interest, rather than paying it out, so that interest in the next period is then earned on the principal sum plus previously accumulated interest. Our tool helps you instantly calculate how this powerful mathematical concept grows your wealth over years.
How to Use the Compound Interest Calculator?
Enter your initial investment amount, the amount you plan to contribute monthly, your expected annual interest rate, and the number of years your money has to grow. The tool will immediately graph or display your Total Principal, Total Interest Earned, and the impressive Total Future Value of your portfolio.