Position Size & Risk Calculator
Work out exactly how big your trade should be so a stop-out only costs your planned risk.
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Position size—
Amount at risk—
Risk per unit (entry → stop)—
Position value—
Formula: position size = (account × risk %) ÷ distance to stop. Risk a fixed small % (pros use 1–2%).
Risk / Reward Calculator
See your reward-to-risk ratio and the win-rate you’d need just to break even.
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Reward : Risk—
Risk (entry → stop)—
Reward (entry → target)—
Breakeven win-rate needed—
Aim for at least 1:1 — ideally 1:2 or better. Breakeven win-rate = 1 ÷ (1 + reward-to-risk).
Compound Growth
See how a steady average gain (or loss) per trade compounds over time.
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Ending balance—
Total return—
Profit / loss—
Compounding cuts both ways — a steady negative edge shrinks the account just as fast. This assumes a constant average; real results vary trade to trade.
Drawdown Recovery
The brutal math: a loss needs a bigger gain to get back to even.
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Gain needed to recover—
Formula: required gain = drawdown ÷ (1 − drawdown). This is why protecting capital beats chasing gains.
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