Tools / Compounding Calculator

Forex Compounding Calculator

Project the curve, the schedule, and the honest version that prices losing streaks into your trading edge.

Free · no signup · deposits, withdrawals, goals, and statistics
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Account currency
Starting balance
Gain per month % - your average, after costs
Compound every
For how long months
Deposits or withdrawals optional
Each month I
Amount per month
Goal optional - when do I get there?
Target balance
$12,6821.27x

$10,000 compounded for 12 months at 2.0% per month.

2.0% per month compounds to 26.8% per year

compoundingwithout reinvesting
Total gain+$2,682+26.8%
Without reinvesting$12,400compounding adds $282
Balance doublesbeyond this horizon

The schedule

monthstartgainend
110,000+20010,200
210,200+20410,404
310,404+20810,612
410,612+21210,824
510,824+21611,041
611,041+22111,262
711,262+22511,487
811,487+23011,717
911,717+23411,951
1011,951+23912,190
1112,190+24412,434
1212,434+24912,682
the link shares these exact inputs

This curve ends at $12,682 - and it assumes you never tilt.

See your actual equity curve - and the exact days you broke the line. Helix AI knows which days those were.

Show my real curve
Connects in minutes · cancel anytime
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New to this? Read the expectancy explainer in plain English.

How compounding works

Ending balance = starting balance × (1 + return per period)^number of periods. Gains enlarge the base for the next period, so a repeatable edge produces a curve rather than a straight line.

The rate matters more than the fantasy

Ten percent a month compounds to about 214% a year. A repeatable 1% to 3% monthly pace already compounds to roughly 13% to 43% annually. Compare assumptions instead of treating the smoothest curve as a promise.

Losing streaks change the path

A positive average trade can still compound below its naive arithmetic return because losses shrink the base before the next gain. The statistics mode estimates both the naive and geometric paths so the gap stays visible.

Frequently asked questions

What is the compounding formula?
Ending balance equals starting balance multiplied by one plus the return per period, raised to the number of periods.
Is 10% a month realistic?
Not as a durable baseline. It compounds to about 214% a year. Use several scenarios and judge the result against your verified trading history.
Should I withdraw or keep compounding?
Compounding maximizes growth while withdrawals produce income and reduce capital at risk. The right mix depends on the role trading plays in your finances.
Do I need a TradeDNA account?
No. The calculator is free and standalone. A TradeDNA account compares this projection with your actual equity curve.
Forex Compounding Calculator - Free Tool | TradeDNA