Prop Firm Tools

Prop Firm Consistency Calculator

See whether your best day passes your firm's consistency rule. Enter your total profit, the consistency limit, and your single best day to learn how much one day can contribute — and what total a big day needs to comply.

$1,000.00

Your cumulative profit across the whole evaluation.

30%

Max share one day may contribute.

$300.00

The profit from your single most profitable day.

Consistency Check Within the rule

Your best day is exactly at the 30% limit, so it stays within the rule.

Max Allowed Day$300.00
Your Best Day30.0% of total
Min Total To Comply$1,000.00

For educational purposes only. Read our risk warning before trading.

The Math

How the Consistency Check Works

The rule caps how much any single day can contribute to your total profit. Multiply your total profit by the limit to get the most one day may earn. Your best day passes when it stays at or under that cap. If it is over, you either keep trading to grow your total, or work out the minimum total that would bring the day back inside the limit.

Quick Reference

Consistency Rule At a Glance

ConceptWhat it means
Consistency ruleStops one lucky day dominating your profit.
Typical limit20–40% of total profit.
Fix a breachTrade more days or raise your total profit.

Frequently Asked Questions

What is a consistency rule?

It is a prop firm rule that caps how much any single trading day can contribute to your total profit. It stops one outsized day from carrying the whole evaluation, pushing you to show steady results across many days rather than a single lucky session.

How is the best-day limit set?

The firm sets a percentage, often 20% to 40%, and applies it to your total profit. Multiply the two and you get the most any one day is allowed to earn. Lower percentages demand more days of trading before you qualify.

Can one big day fail me?

Yes. If a single day's profit is more than the allowed share of your total, the consistency rule is breached even when you are otherwise profitable. The fix is to keep trading so your total grows, which shrinks that day's share back under the limit.

Does it apply after funding?

It depends on the firm. Some apply consistency only during the evaluation, while others keep it on funded accounts or tie it to payouts. Always read your firm's rulebook, since the percentage and whether it applies post-funding vary between programs.