Compound Interest Calculator

Our Compound Interest Calculator helps you estimate how your savings or investments can grow over time by earning interest on both your original principal and previously earned interest. 

The Snowball Effect

Compound Interest Calculator

See how a starting balance and regular monthly contributions grow over time as interest compounds on itself.

$
$
%
Future Value $68,203.41
Total Contributed
$41,000
Interest Earned
$27,203
Balance Over Time
Contributions Interest earned

Estimate only. Assumes contributions are made monthly and interest compounds at the selected frequency; actual account terms may differ.

Compound Interest Calculator

Simply enter your initial investment, interest rate, compounding frequency, contribution amount, and investment period to instantly calculate your future balance, total interest earned, and overall investment growth.

Whether you’re planning for retirement, building long-term wealth, saving for education, or reaching financial goals, this calculator provides fast and accurate results to help you make smarter financial decisions.

How Does It Work?

Compound interest allows your money to grow faster because interest is earned not only on your initial investment but also on the accumulated interest from previous periods.

The calculator considers:

  • Initial Investment (Principal)
  • Annual Interest Rate
  • Investment Duration
  • Compounding Frequency (Daily, Monthly, Quarterly, Annually)
  • Regular Contributions (Optional)
It then calculates your future investment value and shows how much of your total balance comes from your deposits versus earned interest.