Calculators built around prop-firm rules.
Risk sizing, drawdown room, futures contracts and challenge probability — all calculated locally in your browser with no signup.
Challenge Simulator
Estimate pass probability with a 10,000-run Monte Carlo model using your win rate, R:R, risk per trade, profit targets and drawdown.
Run simulation → Forex & CFDPosition Size Calculator
Convert account size, risk and stop distance into a maximum lot size. Pip value is editable so broker differences are explicit.
Calculate lots → FuturesFutures Contract Calculator
Size ES, NQ, GC, CL and their micro contracts from your dollar risk and stop distance.
Calculate contracts → Prop-specificDrawdown Room Calculator
See how much daily-loss and total-loss room remains before you place the next trade.
Check your buffer → True cost & break-evenProp Firm True Cost Calculator
Model failed attempts, subscriptions, resets, activation fees, refunds and the cost relative to your real max-loss buffer.
Calculate true cost → Coming nextRule Scanner
Search critical restrictions across funded-stage rulebooks. This database is still being expanded.
Under construction