Prop Firm Consistency Rule Calculator
Many prop firms cap how much of your total profit can come from your best day. Paste your daily P/L and enter the limit (40% by default) to see your best-day percentage, whether it passes, and how much more profit you need if it doesn't.
Not yet: best day is 50.0% of total profit (limit 40%)
You need 600.00 more profit, for 3,000.00 in total, assuming no later day beats your best.
Best day
1,200.00
Day 3 of 5
Total profit
+2,400.00
4 winning days
Required total
3,000.00
1,200.00 / 40%
Top 3 days' share
95.8%
How much rides on a few days
Show as a table
| Bucket | P/L |
|---|---|
| 1 | +600.00 |
| 2 | −300.00 |
| 3 | +1,200.00 |
| 4 | +400.00 |
| 5 | +500.00 |
The consistency rule formula
Consistency % = Best single day profit / Total profit Required total profit = Best day / Consistency limit Extra profit needed = Required total profit − Current total profit
This is the calculation set out in our prop firm consistency rule guide. The calculator treats a result exactly at the limit as a pass, which is how most firms word it; some require the best day to stay strictly below the limit.
Worked example
Five illustrative trading days (the calculator's default input):
| Day | P/L | Running total | Best day | Consistency |
|---|---|---|---|---|
| 1 | +$600 | $600 | $600 | 100% |
| 2 | −$300 | $300 | $600 | 200% |
| 3 | +$1,200 | $1,500 | $1,200 | 80% |
| 4 | +$400 | $1,900 | $1,200 | 63% |
| 5 | +$500 | $2,400 | $1,200 | 50% |
At a 40% limit you need $1,200 / 0.40 = $3,000 in total, so another $600, as long as no later day beats $1,200. If day 6 loses $200, the total drops to $2,200, consistency rises to 55% and the gap grows to $800.
Before you rely on it
- Use the firm's trading day. Futures sessions often start the previous evening, so an evening trade may belong to the next day.
- Use the firm's window. Evaluations usually measure the whole evaluation; payout rules often measure the current payout cycle and reset after each payout.
- Check the current rule.This calculator doesn't know any firm's rules. Limits vary by firm, account type and stage, and they change; the guide links to each firm's source pages.
FAQs
Questions about the prop firm consistency rule calculator
Guides behind the maths
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