How to Use Consistency Rule Calculator
The Consistency Rule Calculator is designed for prop firm traders who need to verify their account profitability meets the consistency rule before requesting a payout or evaluation pass.
- Set the rule limit — Choose the percentage limit from the dropdown (20%, 30%, 40%, or 50%) to match your prop firm’s specific policy.
- Enter daily P&L — Add one row per trading day. Type an optional day label and enter the profit or loss for that day (use negative numbers for losing days). Click + Add Day to include more sessions.
- Read the results — The Consistency Rule Calculator instantly shows your current Status (Pass, Warning, or Failed), along with the full breakdown of key metrics.
- Understand the extra profit needed — If you have failed, the Extra Profit Needed field tells you exactly how much additional total profit you must accumulate so that your best day falls within the allowed limit.
Formula & Theory — Consistency Rule Calculator
The Consistency Rule Calculator applies three core formulas:
Consistency % = Best Day Profit ÷ Total Net Profit × 100
Max Allowed Best Day = Total Net Profit × Rule Limit %
Required Total Profit = Best Day Profit ÷ Rule Limit %
Extra Profit Needed = Required Total Profit − Current Total Net Profit
(only shown when consistency rule is violated)| Symbol | Meaning |
|---|---|
| Best Day Profit | Highest single-day P&L across all entered days |
| Total Net Profit | Sum of all daily P&L values (profits minus losses) |
| Rule Limit % | The consistency cap set by your prop firm |
Status Thresholds
| Status | Condition |
|---|---|
| Pass | Consistency % ≤ Rule Limit |
| Warning | Consistency % is between 85% and 100% of Limit |
| Failed | Consistency % > Rule Limit |
Assumptions and Limits
The Consistency Rule Calculator only considers days with a valid numeric P&L. It requires a positive Total Net Profit to compute a meaningful Consistency Percentage — accounts with zero or negative net profit cannot be evaluated for consistency compliance.
Use Cases for Consistency Rule Calculator
The Consistency Rule Calculator is essential for any trader in a funded account program:
- Pre-payout verification — Before submitting a payout request, confirm that no single day accounts for too large a share of your gains.
- Daily monitoring — After each trading session, add the day’s P&L to the Consistency Rule Calculator to track your running consistency percentage in real time.
- What-if planning — Model different trading scenarios to understand how a very profitable day would affect your compliance standing.
- Multi-firm comparison — Test the same trading history against the 20%, 30%, 40%, and 50% rule limits used by different prop firms to see which ones you would pass.
- Recovery planning — If the rule is violated, the Consistency Rule Calculator shows the exact total profit target you need to reach so your best day falls back within the allowed range.
The Consistency Rule Calculator provides a fast, transparent way to stay compliant with prop firm consistency requirements. Always confirm the exact rule percentage and any additional conditions with your firm’s official program documentation.