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Expectancy Calculator
Calculate expected value per trade based on your win rate and average win/loss amounts.
Prop Firm Focused
No server storage — your data stays local
Input Parameters
Results
Expectancy per Trade
$0.00
Expectancy in R
0.00R
Expected Profit (100 trades)
$0.00
Breakeven Win Rate (at this R:R)
0%
Edge Assessment
Enter values to calculate
Risk:Reward Breakeven Reference
| R:R Ratio | Breakeven Win Rate | Interpretation |
|---|---|---|
| 1:1 | 50.0% | Win half your trades to break even |
| 1.5:1 | 40.0% | Win 4 out of 10 trades to break even |
| 2:1 | 33.3% | Win 1 out of 3 trades to break even |
| 3:1 | 25.0% | Win 1 out of 4 trades to break even |
| 4:1 | 20.0% | Win 1 out of 5 trades to break even |
How It Works
Formula: Expectancy = (Win Rate × Avg Win) - (Loss Rate × Avg Loss)
R Value: R = Avg Loss (your risk unit). Expectancy in R = Expectancy / Avg Loss
Positive Edge: If expectancy is positive, you have an edge. The higher the expectancy, the more profitable your system.
Why it matters: Knowing your expectancy helps you understand if your strategy is profitable long-term and how much you can expect to make per trade on average.