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Investment Growth Calculator

See what a monthly amount could grow to over time, using ranges you choose.

Enter a monthly amount, like $300 a month, and see what steady compound growth could add up to over 5, 10, 20, and 30 years.

This is an illustration, not a forecast. Real investments do not grow in a straight line, and past returns do not predict future ones. Use it to understand the math, not to plan an exact result.

From $25 to $10,000 a month.

Years invested

Zero, four, and eight percent are the reference rates used across this site. Eight percent is a common long-run stock-market illustration, not a promise.

At 8% over 10 years

$0

You put in $0
Growth $0

Illustration only, before tax, fees, and inflation. Real returns vary year to year and can be negative. This is not a forecast.