Free trading calculators

Position size, risk/reward, R-multiple, profit factor and expectancy. Everything runs in your browser; nothing you type is sent anywhere.

Position size calculatorHow many shares to buy so that, if your stop is hit, you lose exactly the amount you decided to risk.Risk/reward calculatorThe reward-to-risk ratio of a planned trade, and the win rate it needs just to break even.R-multiple calculatorMeasure a closed trade in units of what you risked, so trades of different sizes compare fairly.Profit factor & expectancy calculatorPaste the profit or loss of each closed trade, one per line or separated by commas.

Stop calculating by hand

TradeGreen connects to your broker read-only and works out R-multiple, win rate, profit factor and expectancy for every setup, from your real fills.

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Educational tool, not investment advice. TradeGreen describes trades that already happened and never recommends what to buy.