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Expectancy per Trade: —
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Break-even Win Rate: —
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An Expectancy Calculator helps traders measure whether a trading strategy has a real edge over time. Instead of looking only at win rate, it combines win rate, average win, and average loss to show the average amount you expect to make or lose per trade. This makes it one of the most important tools for evaluating trading performance because a strategy can look good on the surface and still lose money in the long run.
Many traders focus too much on how often they win and not enough on how much they win when they are right versus how much they lose when they are wrong. That is where expectancy becomes valuable. It gives you a clearer picture of whether your system is statistically favorable, whether your average trade is worth taking, and whether your strategy is likely to survive over a large sample of trades.
This calculator uses your win rate, average win, average loss, and number of trades to estimate the expected result of your strategy. It calculates expectancy per trade and then projects that result across the number of trades you enter. That means you can see both the strength of the strategy and the possible total outcome over time.
The core formula is:
Expectancy = (Win Rate × Average Win) − ((1 − Win Rate) × Average Loss)
If the result is positive, your strategy has a statistical edge. If it is negative, the strategy is likely losing money over time. If it is near zero, the system is close to break-even and may not be strong enough after fees, slippage, or emotional mistakes are added.
Expectancy matters because trading success is not built on a single trade. It is built on a repeatable system that performs well across many trades. A trader can have a low win rate and still be profitable if the average winners are much larger than the average losers. On the other hand, a trader can win most of the time and still lose money if losses are too large.
This is why expectancy is often more useful than win rate alone. It helps you evaluate the real quality of a strategy and understand whether your trading approach has a true edge or just looks good in the short term.
The break-even win rate is the minimum win rate required for a strategy to stop losing money. It depends on how large your average win is compared to your average loss. If your actual win rate is above the break-even level, expectancy becomes positive. If it is below that level, the strategy is likely losing money over time.
That makes break-even win rate a useful benchmark for evaluating any trading system. It tells you the line between survival and decline.
This gives you a simple but powerful way to test whether your strategy is worth using before you risk real capital.
Traders use expectancy because it answers a more important question than “Do I win often?” It answers “Does my system make money overall?” That is the question that matters if your goal is consistency, survival, and long-term profitability.
A strong expectancy does not guarantee every trade will work, but it does show that your strategy has a statistical advantage. That is what separates a repeatable system from random guessing.
⚠️ A high win rate is not enough. A strategy only matters if the numbers work over time.
Expectancy tells you the average amount you can expect to gain or lose per trade over a large number of trades. It is one of the clearest ways to measure whether a strategy has a real edge.
A positive expectancy is a good sign because it means the strategy has potential to make money over time. Still, you should also consider fees, slippage, discipline, and market conditions before relying on it.
Yes. A strategy can be profitable with a low win rate if the average winning trades are much larger than the average losing trades. That is exactly why expectancy is more useful than win rate alone.
Break-even win rate shows the minimum win rate needed to avoid losing money. It gives you a reference point so you can see whether your current strategy is strong enough to survive long term.
Yes. Fees, spreads, and slippage can reduce your real expectancy. A strategy that looks profitable on paper may become less attractive once actual trading costs are included.
Yes. It works for any market where you can estimate your win rate, average win, average loss, and number of trades. That includes forex, crypto, stocks, futures, and other markets.
Disclaimer: The calculators on this website are provided for informational and educational purposes only. All results are estimates based on the values entered and do not constitute financial, investment, or trading advice. Always conduct your own research before making financial decisions.