Investment Calculators

Compound interest.

Project investment growth with an initial principal, regular monthly contributions, and any compounding frequency. Includes a year-by-year breakdown table.

Inputs

$
$
%
years

Future value

Fill the form and press Calculate.

The compound interest formula

A = P(1 + r/n)nt where A is the final amount, P is your principal, r is the annual rate, n is the compounding frequency, and t is the number of years. More frequent compounding nudges the result up slightly; the much bigger lever is time.

Disclaimer

Educational only. Real-world returns vary with market conditions, fees, and taxes. Past performance does not guarantee future results.