Free tool
Prop Firm Consistency Rule Calculator
Enter your numbers, get your ratio instantly. Then see the part a calculator can't do — keeping you under the limit every session, not just today.
Inputs
Total profit target: $3,000.00
Results
Your best trading day profit of $0.00 is within the 25% limit.
Limits & requirements
How we compute: consistency score = best day ÷ total target × 100. Max best day = limit% × total target. Profit needed = best day ÷ limit%.
This number is a snapshot. Your ratio moves every session.
A calculator tells you where you stand right now. It can't stop you the day you overtrade to "match" a big win, or the week you go quiet and never dilute it. That's what actually breaks the rule.
TradeCrucible sets a daily cap tuned to your prop firm's rule and holds you to it live — so no single day runs away with your total, and staying consistent stops being a spreadsheet you have to remember.
Get early access →What the consistency rule is
The consistency rule caps how much of your total profit can come from a single trading day. If your best day is more than your firm's threshold — commonly 20–30% for futures firms — your payout can be denied, delayed, or reduced, even after you passed the evaluation. It's a payout condition, not an evaluation risk parameter.
How to read your result
- Actual consistency score — your best day as a percentage of your total profit target. Under the limit, you're compliant.
- Max best day profit — the biggest single day you can post against your target while staying under the limit.
- Total profit needed — how much total profit would bring that best day back under the limit.
Why the number isn't the hard part
The math is easy. Staying under it isn't. Traders don't break the consistency rule because they can't calculate it — they break it because after one big day they either overtrade trying to match it, or stop trading and never dilute it. A calculator can't see either of those in the moment.
That's the gap TradeCrucible closes: a daily cap tuned to your firm's rule, enforced live while you trade, so no single day runs away with your total. Read the full breakdown of how the consistency rule works →
Consistency rule: quick answers
How do you calculate the consistency rule?
Divide your best single day by your total profit and multiply by 100. That percentage has to stay under your firm's limit — a best day of $900 on a $3,000 total is 30%.
How do you calculate a 20% or 30% consistency rule?
Multiply your total profit target by the limit. On a $3,000 target, a 20% rule caps your best day at $600; a 30% rule caps it at $900. Post more in one day and you're in breach until more profit dilutes it.
What does a 50% consistency rule mean?
Your best day can be up to half your total profit — the most lenient common tier. On a $3,000 target, your biggest day can reach $1,500.
Which prop firms have a consistency rule?
Most futures firms enforce some version of it — Topstep, Apex, Tradeify, Alpha Futures, Take Profit Trader and MyFundedFutures among them — and many forex firms use it or a minimum-trading-days rule that plays a similar role. The exact percentage varies and changes, so always check your firm's current payout terms.