Investment Calculator

Growth · housing · debt · retirement

Lump sum & growth

Project how an investment grows with compound returns and optional monthly contributions.

Inputs

Starting balance, return, horizon, and monthly adds.

$25,000
$
$500
$
8.0%
%

Historical stock market average is roughly 7–10%.

20
yrs

Future value

$417,680

After 20 years

Total contributions

$145,000

Principal + monthly

Investment growth

$272,680

188% of contributions

Growth over time

Balance vs. contributions (compounded monthly).

Balance Contributions