Compound Interest Calculator
Calculate compound interest on your savings and investments over time.
Compound Interest Calculator
Calculate compound interest on your savings and investments over time.
$
%
years
Real-World Examples
Retirement savings
$10,000 invested at 7% for 30 years, compounded monthly
$81,317.04
College fund
$5,000 at 5% for 18 years, compounded annually
$12,033.21
Common Mistakes to Avoid
Using simple interest instead of compound interest
Fix: Compound interest earns interest on interest, leading to significantly higher returns over time.
Entering the rate as a decimal instead of a percentage
Fix: Enter 5 for 5%, not 0.05. The calculator handles the conversion.