Prop firm tools & calculators
Free, no-signup calculators built specifically around prop firm rules — daily drawdowns, trailing floors, profit targets and split tiers. Everything runs in your browser; we never see your numbers.
- Free tool
Position Size Calculator
Lot size from account, risk % and stop distance — with prop-firm-safe presets for forex, gold and indices.
- Free tool
Challenge Pass Probability Simulator
Monte Carlo simulation of your win rate, risk:reward and sizing against real challenge rules — see your true pass odds before you pay.
- Free tool
Drawdown & Breach Calculator
Exactly how much room you have left before a daily or max drawdown breach — static and trailing modes.
- Free tool
True Challenge Cost Calculator
Expected total spend to get funded based on fee and realistic pass rates — the number sticker prices hide.
- Free tool
Profit Split & Payout Calculator
Your real take-home from a payout: split tiers, fee refunds and effective return on your challenge fee.
New here? Start with what a prop firm is and how to pass a challenge, then pick a firm from our 2026 rankings.