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Free Trading Master Tool

Trading Expectancy Calculator

Estimate the average R-multiple of a trading process from win rate, average win, average loss and costs. Use it as an education-first risk review, not as a signal or prediction.

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Estimated expectancy

+0.21R per trade before position sizing decisions.

Formula: (win rate × average win) − (loss rate × average loss) − costs.

Educational tool only. It does not forecast future results and does not replace risk controls, journaling or independent decision-making.

Why expectancy matters

Many traders focus only on entries. Expectancy forces a more complete review: how often a setup wins, how large winners are compared with losses, and whether costs can erase a small edge.

How to use it safely

  • Use only journaled sample data, not guesses from memory.
  • Review by setup type instead of mixing every trade together.
  • Keep risk per trade separate from strategy quality.
  • Re-check after market conditions or execution rules change.

Trading expectancy formula

The basic expectancy formula is: (win probability × average win) − (loss probability × average loss) − estimated costs. If winners average 1.8R, losses average 1R and the win rate is 45%, the process has a different profile than a 70% win-rate process with tiny winners and large losses.

This page uses R-multiples because they connect directly to risk management. A 1R loss means the planned risk was lost; a 2R win means the result was two times the planned risk.

Where Trading Master fits

Trading Master teaches expectancy as part of a structured framework: market structure, technical analysis, risk management, trading psychology, execution rules and review. The calculator gives a quick number, but the e-book shows how the number connects to a complete process.

Related risk tools

Risk Reward CalculatorForex Position Size CalculatorTrading Journal TemplateRisk Management WorksheetTrading Drawdown CalculatorRisk of Ruin CalculatorTrading E-Book

Frequently asked questions

Is a positive expectancy guaranteed to continue?

No. Historical journal data can change. This calculator is educational and cannot guarantee future performance.

Should I increase position size when expectancy is positive?

Not automatically. Position sizing depends on risk tolerance, drawdown limits, sample size and personal rules. Trading Master keeps the focus on process and risk control.

Does Trading Master provide signals?

No. Trading Master is educational content only. It does not provide financial advice, trading signals or profit guarantees.