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Trading & Investing
Free online tool
Estimate average expected profit or loss per trade from win rate, average winning trade and average losing trade.
Tool workspace
Enter your account capital and trade parameters, then review the risk metrics.
Reviewing historical strategy performance and understanding how win rate and payoff interact.
Use results from a meaningful sample of trades and keep costs consistent; a tiny sample can give a misleading expectancy.
Historical expectancy is not a guarantee of future performance and does not capture every dependency between trades.
How to use it
Use the controls above, check the result, then copy or download it when available.
Yes. If average wins are sufficiently larger than average losses, the calculated expectancy can still be positive.
Use this tool whenever you need: Reviewing historical strategy performance and understanding how win rate and payoff interact. It offers a fast, client-side workflow without sign-ups, installation or complex software.
Yes. All processing executes locally in your browser using client-side JavaScript. Your inputs, files and calculations remain private and are never uploaded to our servers.
Use results from a meaningful sample of trades and keep costs consistent; a tiny sample can give a misleading expectancy. Important note: Historical expectancy is not a guarantee of future performance and does not capture every dependency between trades.
Related
Set your inputs below. Results update instantly in your browser - no sign-in or upload required.
Loss rate
45.00%
Expectancy / trade
280
Win / loss ratio
1.67 : 1