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Risk Calculators

Break-Even Win Rate Calculator

Minimum win rate needed to break even for a given risk-reward ratio, and your expectancy per trade.

Enter values

Results update as you type.

Result

Break-even win rate

33.33%

Positive expectancy.

Expectancy (R per trade)
0.35

About the Break-Even Win Rate Calculator

Minimum win rate needed to break even for a given risk-reward ratio, and your expectancy per trade.

Also known as: break even probability, required win rate, trading expectancy.

How to use this calculator

  1. Enter reward-to-risk ratio, your win rate.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

Win rate = 1 / (1 + R:R)

Worked example

Using the values pre-filled in the calculator above:

  • Reward-to-risk ratio = 2
  • Your win rate = 45 %

the calculator returns:

  • Break-even win rate: 33.33%
  • Expectancy (R per trade): 0.35