Compound Interest Calculator

See how your money grows when your interest starts earning interest.

$
The amount you're starting with today
$
How much you'll keep adding, and how often
6.0%
The annual return you expect to earn
How often interest is calculated and added
25 years
The longer your money grows, the more compounding works for you

Your investment will be worth

$0

You put in $0
Interest earned $0

Touch or drag on the chart to explore year by year

Year-by-year breakdown
YearYou addedInterestBalance
Assumptions

Your regular additions are made at the end of each period (for example, at the end of each month).

Interest is calculated using the compounding frequency you choose and converted to an equivalent rate for each contribution period, so contributions start growing as soon as they're made.

The interest rate stays the same for the whole period. Real returns vary from year to year, and this calculator doesn't account for taxes, fees, or inflation.

These results are for information purposes only and are not financial advice. They're estimates based on the numbers you entered and the assumptions above, and aren't a guarantee of future performance.