Free tools
Free trading calculators
Five free calculators for futures and prop-firm traders — no signup required. Each runs the same math Fillbook calculates automatically once you're tracking trades.
Prop firm risk
Prop Firm Drawdown Calculator — See Your Real Buffer
Prop firms calculate trailing drawdown differently from each other, and differently from a plain fixed drawdown. Enter your account's own rules below and see exactly where your floor sits right now, and how much buffer is actually left before a violation.
Open calculatorDaily Loss Limit Calculator — How Much Risk Is Left Today
A daily loss limit is a separate rule from max drawdown, and it resets on its own schedule. Enter today's starting equity, your daily loss limit, and your current open P&L to see exactly how much room is left in today's session before you hit it.
Open calculatorProp Firm Consistency Calculator — Is Your Best Day Too Big?
Most prop firms cap how much of your total profit one single day is allowed to account for. Enter your best day, your net profit across every trading day, and your firm's consistency cap to see exactly where you stand.
Open calculatorTrade analysis
R-Multiple Calculator
Enter the risk you planned and the P&L you actually got, and see the trade's R-multiple — the same calculation Fillbook runs on every logged trade automatically.
Open calculatorPosition & P&L
Futures P&L Calculator
Calculate P&L for a futures trade using the real point value for the contract — the same lookup table Fillbook's journal uses to score every logged futures trade.
Open calculator