# Trading Expectancy Calculator

> Turn win rate, average win and average loss into expectancy per trade ($ and R), profit factor and the breakeven win rate your R multiple demands.

**Source:** https://propfirmito.com/tools/trading-expectancy-calculator/  
**Last modified:** 2026-07-07

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# Trading Expectancy Calculator

Turn your track record into the three numbers that describe an edge: expectancy per trade (in dollars and in R), profit factor, and the breakeven win rate your reward-to-risk ratio demands.

Win rate (%) Average win ($) Average loss ($) Calculate

## Results

Expectancy per trade $75.00

Expectancy in R 0.50

Profit factor 2.00

Breakeven win rate 33.3%

Over 100 trades $7,500.00

The results below use the form’s default values. Enable JavaScript to recalculate live with your own numbers.

## How it works

**Formula:** Expectancy = win rate × average win − (1 − win rate) × average loss. Expectancy in R = expectancy ÷ average loss. Profit factor = (win rate × average win) ÷ ((1 − win rate) × average loss). Breakeven win rate = 1 ÷ (1 + average win ÷ average loss). Example: 50% win rate, $300 wins, $150 losses → $75/trade, 0.5R, profit factor 2.0.

## Frequently asked questions

### What is a good expectancy per trade?

Anything reliably positive after costs is workable; sustained expectancies around 0.2–0.5R per trade are solid for retail strategies. The dollar figure matters less than the R figure, because R scales with whatever account size you trade.

### What does profit factor mean?

Profit factor is gross profits divided by gross losses. Above 1.0 the strategy makes money; 1.5–2.0 is generally considered robust; far higher values on small samples usually signal luck rather than skill.

### How many trades do I need before these numbers mean anything?

Treat statistics from fewer than 50–100 trades as provisional — small samples swing wildly. Recompute as your journal grows and expect the numbers to drift toward their true values.

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Free educational calculator. Not financial advice. Rules differ by firm — always verify exact values on your firm’s official site.