One oversized day can fail an otherwise clean evaluation
Consistency rules exist so no single lucky session carries the whole account — miss that math and a passing evaluation gets rejected at payout, not before.
Firms grade the final total, not each day
Most consistency rules are checked against your total profit at evaluation or payout — not continuously. A big early day can look fine right up until it isn't.
Every firm calculates it differently
Percent of total profit, percent of profit target, gross vs. net — the mechanics vary by firm and change over time. Generic rules of thumb get traders disqualified.
Fixing it late costs more than planning early
Once a day is locked in over the limit, your only lever is more total profit to dilute it. Planning the split before you trade avoids the scramble.
Target first, minimum days second
Most traders plan days first and hope the math works out. Flip it — solve for the profit target, then fit your remaining minimum days around it.
Rules change — your plan should update with them
Account sizes, targets, and consistency percentages get revised by firms regularly. Tools here always take your current published numbers, not stale defaults.
Built by traders, not just for them
Every tool on this site models the actual pass/fail math prop firms use — not a rough approximation — so what you see here is what the firm will check.
Start with the consistency rule calculator
More prop firm futures trading tools are coming — this is the first.
Consistency Rule Calculator
Enter your account size, profit target, consistency limit, and minimum trading days. Get a target-first plan: the split to hit target on time, the exact EOD reduction if a day breaks the rule, and the max (and minimum) P&L allowed per day.
Open Calculator →Evaluation Progress Tracker
Track drawdown, trailing threshold, and days-to-payout across a full evaluation in one dashboard, firm rules included.
Notify mePosition Size & Drawdown Calculator
Size futures contracts against a firm's max daily and trailing drawdown limits before you ever place the trade.
Notify meWhat the consistency rule actually checks
The short version, before you open the calculator.
A consistency rule (also called a "best day" or "max day" rule) caps how much of your total evaluation profit can come from a single trading day. If your biggest day represents too large a share of your overall profit, the firm can flag the evaluation as inconsistent — even if you technically hit the profit target and the minimum number of trading days.
The rule exists to filter out accounts that passed on the back of one lucky trade rather than demonstrated, repeatable process. Firms want funded traders whose results look sustainable across many sessions, not a single outsized swing.
The mechanics vary by firm — some measure a day's share of total profit, some measure it against the profit target directly, and some only apply the check at the Test/evaluation stage rather than in a funded account. Always confirm your firm's exact published rule before relying on any calculator, including this one.
Read the full breakdown, worked examples, and firm-by-firm comparison on the calculator page.