▦ Finance Calculator
Compound Interest Calculator
Estimate how savings or investments grow over time with compound interest. Fast, simple and private — results are calculated in your browser.
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Investment details
Enter your starting amount, contribution and expected return.
The amount you start with
Optional amount added every month
%
Estimated yearly return or interest rate
How long the money will grow
How often interest is added
Tip: Try changing the time period or monthly contribution to see the power of compounding over time.
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Your results
Here is an estimate of future growth.
Estimated future value
0.00
Estimated total value at the end of the period.
Total contributions
Initial amount plus monthly contributions
0.00
Interest earned
Estimated growth from compound interest
0.00
Number of months
Total contribution months
0
Contribution frequency
Contributions are added monthly
Monthly
Important: This calculator provides an estimate only. Actual returns can vary,
and investment values may go up or down.
About this compound interest calculator
Compound interest means earning interest on both your original amount and previously earned interest. This calculator estimates how an initial amount and monthly contributions may grow over time.