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Compound growth calculator.

See how regular investing and compound returns grow your money over time — then track your real portfolio automatically in Hunch.

$10,000
$500/mo
7%
20
Future value in 20 years
$300,851
at 7% average annual return
Year 0Year 20
You contribute$130,000
Growth earned$170,851
Track your investments in Hunch →
Assumes a constant annual return compounded monthly. Real returns vary.
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Good to know

How compound growth works

This calculator projects the future value of an investment from a starting amount, monthly contributions, an assumed annual return and a time horizon. Returns are compounded monthly, so your contributions and the growth on them both earn further growth — the longer the horizon, the bigger that snowball.

What return rate should I use?

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A diversified stock portfolio has historically returned roughly 7% per year after inflation over the long run, though any single year can be very different. Use a conservative figure for planning.

Why does starting early matter so much?

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Because growth compounds, money invested in your 20s has decades to snowball. Even small monthly contributions started early often beat larger amounts started later.

Does this account for inflation?

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Use a real (after-inflation) return if you want the result in today’s dollars, or a nominal return to see the future face value. The calculator applies the rate you enter.

Can Hunch track my real investments?

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Yes — Hunch syncs your brokerages and shows live holdings, returns and allocation, so you can compare your real growth to your plan.