What is trading expectancy?
Expectancy is the average amount you expect to win or lose per trade over many repetitions. Positive expectancy means the strategy is profitable before costs; negative expectancy means it loses over time.
Win rate & expectancy calculator
Calculate win rate, expectancy, and profit factor from your trade results.
Free · no sign-up · Runs in your browser · Last updated 18 September 2026
The short version
Expectancy = (win rate × avg win) − (loss rate × avg loss). Positive means the system pays over many trades.
Use closed trades only, and the same date range for wins, losses and the two averages.
What is a win rate and expectancy calculator?
A win rate and expectancy calculator turns your trade wins, losses, and average win/loss into win rate, expectancy per trade, and profit factor. Traders use it to judge whether a system is profitable over many trades, not from a single lucky streak.
Win rate & expectancy questions
How do I calculate win rate from trading results?
Win rate = winning trades ÷ total trades × 100. Use closed trades only and the same date range you use for average win and average loss.
Other free calculators
Typing four averages is a guess. The journal already has the real ones.
TradeReview computes win rate, expectancy and profit factor from closed trades as they land. Free forever, no card.