Compound Interest Calculator

Project how your investments grow over time with compounding — see your final balance, total contributions and interest earned, year by year.

Initial investment

Monthly contribution

Annual interest rate (%)

Years

Compounding frequency

Year-by-year growth

Year	Contributions	Interest	Balance

Estimates only — actual returns vary, and this projection does not account for taxes, fees or inflation.

New to investing? Our beginner's guide covers account types, index funds and how compounding does the heavy lifting for long-term investors.