Kelly Criterion Calculator

Enter Win Probability and Reward-to-Risk, Shows a suggested risk amount. Consider using your total max drawdown as your account size.

Win Probability (as a percentage i.e. .5 = 50% chance)

Reward to Risk (3 = 3x reward for a 1x risk)

Account Size

Kelly Multiplier (scale of conservative to aggressive)

Calculate

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Educational tool. If value = 0, refrain from risk. Decreasing fraction amount of the multiplier will reduce account volatility.