Compound Interest Calculator
See how contributions and growth can build over time.
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How much are you starting with?
$
$
$6,000 / year
$/mo
years
Adjust return assumption · 7%
%
Starting balance
$25,000
Monthly investing
$500
$6,000 / year
Return assumption
7%
How this projection works
The calculator converts the annual return assumption to an equivalent monthly rate, compounds the current balance each month, then adds the monthly contribution.
Actual returns vary. The result is an illustrative constant-return projection and does not include taxes, investment fees, or changing contribution amounts.