Prop-challenge tools
Free, run in your browser, no sign-up. Each tool shows its assumptions, and the math is unit-tested.
Pass-odds calculator
Your chance of hitting the target before the drawdown, with daily limits, trailing drawdown, costs and time limits. Monte Carlo plus the exact gambler’s-ruin formula.
Risk-per-trade planner
How many losses in a row your drawdown and daily limits allow at each risk level, the most you can risk to survive a losing streak, and how risk changes your odds.
Daily loss tracker
Log today’s trades and see how much room is left before the daily loss limit and the max drawdown, static or trailing. Saved only in your browser.
Lot size calculator
Lots for a given risk % and stop on EUR/USD, GBP/USD, USD/JPY, gold, US500, NAS100 and US30, checked against your daily loss limit.
Trailing vs static drawdown visualizer
Paste your trades and see where a static, end-of-day trailing and per-trade trailing drawdown would each have stopped you out.
Days-to-target calculator
How many trading days your stats need to reach the profit target, with minimum trading days, time limits and a simulated range.
Consistency rule checker
Check whether your best day is too large a share of your profit, how much more you need, and the biggest day you can add next.
Cost-per-pass calculator
The real cost of a pass: challenge fee ÷ a realistic pass probability, with resets and retry discounts, for up to three account sizes side by side.
Payout and profit-split calculator
What a funded payout is worth after the split, fee refunds and payout fees, and what getting funded really costs once failed attempts count.
Martingale vs bold play
Same zero or negative edge, three staking plans. See which one passes most often, and why.
Prop firm rules compared
Targets, drawdowns and daily limits for Lark Funding, FTMO, FundedNext, The5ers, Topstep and Apex, from the firms’ own pages.