Tools built around the process.
Built for decisions that should be calculated, not guessed — from individual trade planning to deeper system analysis.
I built these after watching the same mistake happen with different tickers: a position sized off a feeling instead of the stop distance, a trade taken because the reward looked good with the risk never actually measured. None of these calculators predict where a stock goes next — nothing here does that, and I wouldn't trust one that claimed to. What they do is take the numbers you already have — entry, stop, capital, your own past trades — and turn them into the trade-off you're actually making, before you make it. If a result changes your mind about a trade, that's the tool working.
Core Trading Tools
Focused calculators for trade planning, position risk and system review.
Pre-trade
Position Size Calculator
Size a position from account risk, entry and stop-loss.
Open calculatorPre-trade
Risk–Reward Ratio Calculator
Compare planned reward against the risk taken.
Open calculatorPortfolio risk
Portfolio Risk Calculator
See total stop-loss risk across your open positions.
Open calculatorAccount risk
Drawdown & Recovery Calculator
Measure a loss and the return required to recover it.
Open calculatorSystem review
Trading Expectancy Calculator
Estimate whether your trading process has positive mathematical expectancy.
Open calculatorAdvanced Trading Tools
Explore how a trading system may behave across different sequences, probabilities and risk conditions.
Advanced · System analysis
Trading Expectancy Path Simulator
See how the same theoretical trading edge can produce very different equity paths, drawdowns and losing streaks.
Open simulator