Compound Interest Calculator — Calculate Future Wealth | RaikTools

Compound Interest Calculator

Calculate the future value of your investments. See how your money grows over time with the power of compound interest and regular contributions.

Investment Details

$
Amount of money you have available to invest initially.
$
Amount you plan to add to the principal every month.
Years
%
Historical stock market returns average ~7-10% annually.
Future Value
$0
  Initial Investment
$0
  Total Contributions
$0
  Total Interest Earned
$0

Wealth Growth Over Time

How Compound Interest Works

Compound interest is the interest on savings calculated on both the initial principal and the accumulated interest from previous periods. Einstein famously called it the "eighth wonder of the world" because of its ability to exponentially grow wealth over time.

The Formula

The standard formula for compound interest is: A = P(1 + r/n)^(nt)
Where:
A = the future value of the investment/loan, including interest
P = the principal investment amount (the initial deposit)
r = the annual interest rate (decimal)
n = the number of times that interest is compounded per unit t
t = the time the money is invested or borrowed for, in years