Compound Interest Calculator
See how your money can grow with the power of compound interest
Investment Details
Investment Growth
Initial Investment
$10,000.00
Total Contributions
$12,000.00
Future Value
$32,911.62
Growth Over Time
Year-by-Year Breakdown
| Year | Starting Balance | Contributions | Interest | Ending Balance |
|---|
About Compound Interest
What is Compound Interest?
Compound interest is interest calculated on the initial principal and also on the accumulated interest of previous periods. It’s often called “interest on interest.”
The Power of Compounding
The more frequently interest is compounded, the greater your returns. This calculator shows how small regular contributions can significantly grow your investment over time.
Compound Interest Formula
A = P(1 + r/n)^(nt) + PMT * (((1 + r/n)^(nt) – 1) / (r/n))
Where: A = the future value of the investment
P = the principal investment amount
r = the annual interest rate (decimal)
n = number of times interest is compounded per year
t = the number of years
PMT = monthly contribution amount