📈 Investing

Compound Interest Calculator

See how your money grows over time. Adjust the sliders to model your own scenario.

Final balance

You invested

Interest earned

Starting amount$5,000

Additional per year$1,200

Annual interest rate7%

Years30 yrs

What you invested Total balance

Hover or use ← → arrow keys to explore each year

At 7%, your money doubles roughly every 10.3 years (Rule of 72).

Explore more calculators