Investing & Stocks
Compound Interest Calculator
See how your money grows over time when interest earns interest.
Your numbers
Future value$0
Total interest earned$0
Total you put in$0
How it works
Compound interest is the interest you earn on both your original money and the interest it has already earned. The more often it compounds, the faster it grows.
A = P (1 + r/n)nt
Where P is the principal, r the annual rate, n the number of times it compounds per year, and t the number of years. Monthly contributions are added and compounded along the way.
Estimates only, for education. Real returns vary and aren't guaranteed. See our disclaimer.