Compound Interest Calculator

Compound Interest Calculator

Calculate how your money grows with compound interest

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%
3%
5%
7.5%
10%
years
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$

Results

Future Value
$0.00
Principal Amount: $0.00
Total Contributions: $0.00
Total Interest Earned: $0.00
Annual Rate: 0%
Time Period: 0 years
Growth Over Time

Enter values and click Calculate to see results

About Compound Interest

Compound Interest is interest calculated on the initial principal and also on the accumulated interest of previous periods.

Formula: A = P(1 + r/n)nt

Where:

  • A = the future value of the investment
  • P = the principal investment amount
  • r = annual interest rate (decimal)
  • n = number of times interest is compounded per year
  • t = number of years the money is invested

With monthly contributions: A = P(1 + r/n)nt + C × [((1 + r/n)nt – 1) / (r/n)]

Where C is the monthly contribution amount.

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