Tools

Compound interest calculator

Adjust the numbers below to see how a monthly contribution can grow over time. This is the same model that powers the example on our homepage.

Your numbers

$1,000
$500
20 yrs
7%

Illustrative only. Actual returns vary and are not guaranteed.

Total contributed

$121,000

Growth earned

$109,460

Final balance

$230,460

Growth is already a meaningful share of this balance. Stretch the timeline a bit further and compounding starts carrying more of the weight than your contributions do.