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Compounding Calculator

Free trading compounding calculator. Project how an account grows with a monthly return rate and optional monthly deposits.

Inputs

$
%
months
$
%
Share of each month’s profit you withdraw instead of compounding.

Your Results

Ending Balance–
Total deposited
–
Trading profit
–
Profits withdrawn
–
Effective annual return
–
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How compounding works

Compounding means each month’s return is earned on a larger balance than the month before.

Ending balance = Starting balance × (1 + monthly return)months, plus the growth on any deposits.

Use realistic numbers

Small differences in monthly return produce huge differences over years, which is why projections built on 10% a month look extraordinary on paper. Real trading returns are uneven and include losing months. Treat this as a planning tool for consistency, not a forecast.

Frequently asked questions

Is a 10% monthly return realistic?
Sustained returns at that level are extremely rare. Use conservative assumptions and stress-test them with losing months.

Projections are hypothetical and not a forecast of results. Risk warning: Trading leveraged products involves a high risk of loss. Nothing on this site is investment advice.