Free trading calculators
5 calculators for the arithmetic that decides whether an edge survives — sizing, reward-to-risk, expectancy, drawdown and compounding. No signup, no email, nothing saved.
Free trading calculators
Position Size Calculator
Work out exactly how many shares or units to buy from your account size, your risk per trade, and where your stop sits. Free, no signup.
Open calculatorRisk/Reward Ratio Calculator
Enter your entry, stop and target to get the reward-to-risk ratio of a trade, the R multiple it returns, and the win rate it needs to pay. Free, no signup.
Open calculatorBreakeven Win Rate Calculator
Find the win rate a strategy needs to break even at a given reward-to-risk, and the expectancy in R your actual win rate produces. Free, no signup.
Open calculatorDrawdown Recovery Calculator
See the percentage gain required to recover a trading drawdown, and how many average winners it takes to get back to your high-water mark. Free, no signup.
Open calculatorTrading Compound Growth Calculator
Project a trading account forward from a starting balance, an average return per period and optional deposits. See the curve month by month. Free, no signup.
Open calculator
Every one of these runs in your browser. Nothing you type is sent anywhere or stored — which is also why none of them can tell you whether you actually traded this way.
Start free — no card required
Every account starts on a 7-day Pro trial. It quietly steps down to Free if you don’t upgrade — never the other way around.
Already have an account? Log in