Compound Growth Calculator
See how an initial amount plus regular contributions can grow over time, assuming a constant annual rate of return.
This is an illustration based on the assumptions you enter, not a prediction. Actual investment returns vary and are not guaranteed.
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$
%
Ending balance
$190,641
Total contributions
$65,000
Total growth
$125,641
How it works: future value of your initial amount plus the future value of your regular contributions, compounded at the frequency you choose. The exact formula is documented in CALCULATOR_FORMULAS.md.
Limitations: assumes a constant rate of return every period. Real investment returns vary year to year — see the Compound Growth lesson for more.
Sources & further reading