Professional risk planning
Position Size & Risk Calculator
Define risk before entry, compare reward in R-multiples, and estimate system-level drawdown risk across stocks, crypto, forex, and futures.
Trade risk map
Long stock position
- Stop distance
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- Loss at stop
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- Profit at target
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- System expectancy
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Risk of ruin
—estimated probability
Outcome ladder
Price levels by R-multiple
Use this before every trade
Position size is derived from the loss allowed at the stop—not the profit hoped for at the target. Risk-of-ruin is a simplified statistical estimate based on your stated win rate, average win, risk per trade, and drawdown threshold. It is not a guarantee and should be supported by a sufficiently large trading record.