Free tools
Trading calculators
20 calculators for sizing a position, costing a round trip, measuring an edge and reading a payoff. Each one has its own page with the formula, a worked example and the mistakes that make it give a wrong answer. Free, instant, and no account needed.
Nothing you type is sent anywhere — the arithmetic runs in your browser.
Sizing & Risk
7Position size calculatorShares/contracts for a fixed % risk, any instrumentPortfolio heat calculatorTotal open risk if every stop hits at onceAverage entry price calculatorScale-in average price, break-even & riskValue at Risk (VaR) calculatorWorst expected loss at a confidence (VaR + CVaR)Risk of ruin calculatorOdds of blowing up given your edge & riskFutures margin and leverage calculatorMargin, buying power & effective leverageTrading fees and break-even calculatorRound-trip cost, break-even move & fee drag
Edge & Analytics
5Trading expectancy and SQN calculatorEdge quality from win rate + avg win/lossTrade sample statistics calculatorExpectancy, streaks & drawdown from real resultsKelly criterion calculatorGrowth-optimal position size for your edgeSharpe, Sortino and Calmar ratio calculatorSharpe, Sortino & Calmar from returnsDrawdown recovery calculatorGain needed to recover a drawdown
Planning
4Markets & Instruments
4Pip and tick value calculatorWhat a pip/tick is worth for your sizeOptions profit calculatorUp to 8 legs — break-even, max P/L, payoff & heatmapPivot point calculatorDaily support/resistance levelsMarket session clock and timezone converterConvert a time between market timezones; which sessions are open
In the app only
CorrelationReads your own symbols and price history, so there is nothing for it to show without an account.
These are the same calculators built into Ledger of Alpha — where they read your real trade history, journal and analytics instead of numbers you re-type. See the full product
Put these numbers to work
Create a free account to log the trades you size here alongside the rest of your record.