TRADING & RISK
Required Win Rate Calculator
Find the win rate needed to cover assumed average losses and costs.
Your result
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How to use this calculator
Adjust the inputs to your own scenario, then review the result alongside the assumptions below. The $ symbol is a currency label; the tool does not convert exchange rates.
Worked example
A $300 average win, $100 average loss, and $10 cost require 27.5% winners.
The formula
Break-even probability = (average loss + cost) ÷ (average win + average loss).
What the result means
Compare the output with the stated assumptions. Changing an input changes the arithmetic; it does not establish how a real trade or investment will perform.
Assumptions and limitations
Binary win/loss model without separate breakeven trades. Extends the existing expectancy tool; rates above 100% mean break-even is not achievable.
Common questions
What does this calculation include?
Binary win/loss model without separate breakeven trades. Extends the existing expectancy tool; rates above 100% mean break-even is not achievable.
Are the example inputs recommendations?
No. The defaults are worked examples. Enter values appropriate to your own calculation; outputs are estimates rather than forecasts.
Put your trading rules to the test
Explore supported daily stock rules, then review historical trades, drawdowns, and the report’s assumptions.
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Open calculator →Educational calculations, not a forecast or personalized investment advice. Your inputs are used locally for the calculation and are not submitted by this tool.