Forex WizardProp Firm Consistency Rule Calculator
Calculate your best-day consistency percentage, see how much additional profit you need, and plan your remaining trading days. Supports net-profit, profitable-days and profit-target rule bases with custom thresholds.
This calculator performs consistency-rule arithmetic only. It does not confirm payout eligibility or predict account outcomes. Always verify your firm's current rules.
CONSISTENCY
50.00%
Threshold: 40%
Above the entered threshold
Supporting Results
Rule Basis
Total Net Profit
Denominator
3000.00
Max Allowed Best Day
1200.00
Required Denominator
3750.00
Additional Profit Needed
750.00
Planning Outputs
Max Separate Positive Day
2000.00
Min Even Days (illustrative)
3
Maximum Separate Positive Day Under This Simplified Model — consistency-rule arithmetic only. It does not account for other account rules, profit targets or drawdown limits.
Consistency is about how concentrated your profit is — not how large your risk should be. For risk-based position sizing, use the Lot Size Calculator or the Risk Reward Calculator.
Minimum Evenly-Distributed Positive Days (Illustrative)
If every profitable day contributed equally and the denominator is the sum of those positive days. Real rules may use a different denominator.
| Threshold | Min Equal Positive Days |
|---|---|
| 50% | 2 days |
| 40% | 3 days |
| 35% | 3 days |
| 30% | 4 days |
| 25% | 4 days |
| 20% | 5 days |
How to Use the Prop Firm Consistency Calculator
Mode 1 — Quick Check: Enter your best single-day profit, your consistency threshold, and the profit base your firm uses (total net profit, sum of profitable days, or profit target). The calculator shows your consistency percentage, whether you are within the threshold, the maximum allowed best day, the required profit base, and the additional profit needed.
Mode 2 — Daily P&L: Enter or paste your daily trading results. The calculator summarizes your trading days, winning/losing days, total net profit, sum of profitable days, best winning day, and worst day — then applies the selected rule basis automatically.
Mode 3 — Repair / Planning: Shows the current status plus planning outputs: the maximum separate positive day you can take without breaching the rule, and (if you enter a planned profit per future day) the minimum number of future days needed to satisfy the rule. The solver re-evaluates the best day if your planned day exceeds the current best.
What Is a Prop Firm Consistency Rule?
A consistency rule limits how concentrated your profit may be. It compares your best single trading day to a profit base and requires the ratio to stay at or below a threshold — typically 30%, 40% or 50%.
The goal is to demonstrate that your gains are spread across multiple days rather than coming from one large day. A trader who makes $5,000 in one day and nothing else may be relying on luck; a trader who makes $500 over ten days shows more consistent performance.
This calculator does not confirm payout eligibility. Other requirements — drawdown limits, minimum trading days, profit targets — may also apply. Always verify your firm's current rulebook.
How the Consistency Percentage Is Calculated
Consistency %
Best Day ÷ Relevant Profit Base × 100
The profit base depends on your rule: net profit, profitable days, or profit target.
Maximum Allowed Best Day
Relevant Profit Base × Threshold
The largest single day that stays within the threshold at your current base.
Required Profit Base
Best Day ÷ Threshold
The total base needed for your current best day to fit the rule.
Additional Profit Needed
Required Profit Base − Current Profit Base
Only for variable-denominator bases (net profit, profitable days). Not applicable to profit-target rules.
Why the Denominator Matters
Different firms can define the denominator differently — and the same daily results can produce very different consistency scores depending on which basis you use.
| Day | Result |
|---|---|
| Day 1 | +$1,000 |
| Day 2 | −$500 |
| Day 3 | +$700 |
From this data: Best Day = $1,000, Net Profit = $1,200, Positive-Day Sum = $1,700.
Net Profit basis
83.33%
1000 ÷ 1200
Profitable Days basis
58.82%
1000 ÷ 1700
Profit Target basis ($2,000)
50.00%
1000 ÷ 2000
This is why you must match your rulebook. Using the wrong denominator gives a misleading percentage.
30%, 40% and 50% Consistency Rule Examples
30% Rule
Best Day $1,500, Net Profit $4,000
37.5%
Required total: $5,000 · Additional: $1,000
40% Rule
Best Day $1,500, Net Profit $3,000
50%
Required total: $3,750 · Additional: $750
50% Rule
Best Day $1,500, Net Profit $3,000
50%
Within threshold (at-or-below)
Illustrative only — not a live prop-firm rule. The exact amount changes with your profit base and your firm's current terms.
How Much More Profit Do You Need?
For variable-denominator rules (net profit or profitable days), the additional profit needed is: required profit base minus current profit base. The required base is best day ÷ threshold.
For example, with a best day of $1,500 and a 40% threshold, the required base is $3,750. If your current net profit is $3,000, you need $750 more — assuming your best day stays unchanged.
This calculation assumes your existing best day does not change. If a future day exceeds your current best, the math changes — use the Repair mode solver for that scenario.
For profit-target rules, additional profit does not change the ratio because the target is fixed. The calculator displays this distinction.
How Losing Days Affect Consistency
Under a net-profit rule: Losing days reduce the denominator. A smaller denominator means a higher consistency percentage — which can make it harder to pass. This is counterintuitive: losing days can worsen your consistency score.
Under a profitable-days rule: Losing days do not change the denominator (only positive days are summed). Your consistency percentage is unaffected by losing days.
Under a profit-target rule: Daily losses do not change the denominator directly because the target is fixed.
Best-Day Rule vs Profit Target
The key difference: under a net-profit or profitable-days rule, earning more profit dilutes the ratio (the denominator grows). Under a profit-target rule, the denominator is fixed — earning more profit does not change your consistency percentage.
This means the Repair mode's additional-profit calculation only applies to variable-denominator bases. For profit-target rules, the calculator displays a note explaining that additional profit does not change the percentage unless the target itself changes.
Consistency Rules vs Drawdown Rules
A consistency rule controls how concentrated profit may be. A drawdown rule controls how much loss the account may experience. They are not interchangeable.
You can pass a consistency rule and still fail a drawdown rule, or vice versa. Both may apply simultaneously. A dedicated drawdown calculator may be available separately in the future.
For broader account risk management, see our forex risk management for beginners guide. For position sizing, use the XAUUSD Lot Size Calculator, for trade payoff geometry, the Risk Reward Calculator, and for collateral requirements, the XAUUSD Margin Calculator. To time your entries around the most liquid sessions, use the Forex Market Hours Clock.
Common Consistency Rule Mistakes
Using total account balance instead of profit
Consistency rules typically measure profit, not your full account balance. Check whether your firm uses total net profit, profitable days, or a profit target.
Using one trade instead of one trading day
Most consistency rules apply to the best single trading day, not the best single trade. A day with multiple trades is one day for consistency purposes.
Ignoring losing days under a net-profit rule
Under a net-profit basis, losing days reduce the denominator — which can actually increase your consistency percentage. This is why the denominator matters.
Including losing days in a positive-days-only denominator
If your firm uses sum of profitable days, losing days do not change the denominator. Do not subtract losses from the positive-day sum.
Assuming every firm uses net profit
Some firms use sum of profitable days. Some use a fixed profit target. The three can produce very different consistency scores from the same daily results.
Assuming any consistency rule causes account failure
A consistency breach may affect payout, evaluation, or both — the consequences depend on your firm's full rulebook. This calculator does not confirm payout eligibility.
Confusing evaluation rules with payout rules
Some firms have different consistency requirements for passing an evaluation versus receiving a payout. Check which stage your rule applies to.
Assuming a fixed profit target dilutes
If the rule uses a fixed profit target as the denominator, earning more profit does not dilute the ratio. The percentage only changes if the target itself changes.
Not checking whether equality is allowed
Some rules say 'at or below' the threshold; others say 'strictly below.' A consistency of exactly 40% may pass one rule and fail another.
Mixing payout windows
If your firm measures consistency over a specific payout period, make sure all your daily results come from that same period. Mixing windows produces misleading numbers.
Frequently Asked Questions
What is a prop firm consistency rule?
A consistency rule limits how concentrated your profit may be. It typically compares your best single trading day to a profit base — total net profit, sum of profitable days, or a fixed profit target — and requires the ratio to stay at or below a threshold (such as 30%, 40% or 50%). The goal is to show that your gains are spread across multiple days rather than coming from one large day.
How is prop firm consistency calculated?
Consistency percentage = best day ÷ relevant profit base × 100. The profit base depends on your firm's rule: total net profit (includes winning and losing days), sum of profitable days (only positive days), or a fixed profit target. The rule is satisfied when the consistency percentage is at or below the threshold your firm specifies.
What is a 30% consistency rule?
A 30% consistency rule means your best single trading day must account for no more than 30% of the relevant profit base. For example, if your total net profit is $5,000, your best day must be no more than $1,500. The exact denominator depends on your firm's rule definition.
What is a 40% consistency rule?
A 40% consistency rule means your best day must account for no more than 40% of the profit base. For example, with a total net profit of $3,000 and a best day of $1,500, your consistency is 50% — above the 40% threshold. You would need a total of $3,750 (at the same best day) to meet the rule.
What is a 50% consistency rule?
A 50% consistency rule means your best day may account for up to half of the profit base. With a best day of $1,500 and total net profit of $3,000, your consistency is exactly 50% — within the threshold if equality is allowed (at-or-below). If the rule requires strictly below, 50% does not pass.
How much more profit do I need to meet the consistency rule?
For variable-denominator rules (net profit or profitable days), the additional profit needed = (best day ÷ threshold) − current profit base. For example, with a best day of $1,500, a 40% threshold, and $3,000 current net profit, you need $750 more (to reach $3,750). This assumes your best day stays unchanged. For profit-target rules, additional profit does not change the ratio.
What is the best-day rule?
The best-day rule is another name for the consistency rule. It compares your single best trading day to your total profit (or another denominator) and requires the ratio to stay below a threshold. The idea is that a trader who makes most of their money in one day may be relying on luck rather than consistent skill.
Do losing days affect consistency?
It depends on the rule basis. Under a total-net-profit rule, losing days reduce the denominator, which can increase your consistency percentage (making it harder to pass). Under a profitable-days rule, losing days do not change the denominator. Under a profit-target rule, daily losses do not change the denominator directly.
Does one large day fail a prop firm account?
Not necessarily. It depends on whether the large day pushes your consistency percentage above the threshold, and what the consequences of a breach are under your firm's rulebook. Some firms block payout; others require a new evaluation. This calculator tells you the percentage and whether it is within the threshold you entered — it does not predict account outcomes.
Is a consistency rule the same as drawdown?
No. A consistency rule controls how concentrated profit may be. A drawdown rule controls how much loss the account may experience. They are separate concepts and are not interchangeable.
Does every prop firm use the same consistency formula?
No. Different firms can define the denominator differently — total net profit, sum of profitable days, or a fixed profit target. Thresholds also vary (30%, 40%, 50% or custom). Always check your firm's current rulebook. Rules change frequently.
What if my firm uses profit target instead of total profit?
If the rule uses a fixed profit target as the denominator, your consistency percentage = best day ÷ profit target × 100. Earning more profit does not dilute this ratio because the target is fixed. The only way to improve the percentage is to reduce your best day or have the target itself change under your firm's rules.
Can I paste my daily P&L into the calculator?
Yes. In Daily P&L mode, paste your daily results into the text area — one number per line, comma separated, or space separated. The parser handles negative numbers, decimals, and strips common currency symbols. Click Parse & Add to List to populate the individual day rows.
Does this calculator confirm payout eligibility?
No. This calculator performs consistency-rule arithmetic only. It tells you whether your best-day percentage is within the threshold you entered. It does not account for other payout requirements, drawdown rules, minimum trading days, or any other term in your firm's full rulebook. Always verify your firm's current rules.
Risk Disclaimer
Trading forex, gold and CFDs involves significant risk and may not be suitable for everyone.
This calculator is provided for educational and informational purposes only and should not be considered financial advice, investment advice or a recommendation to buy or sell any financial instrument.
Prop firm rules change frequently. This calculator does not confirm payout eligibility, account pass/fail status, or any specific firm outcome. Always verify your firm's current rulebook before making trading decisions.
Always perform your own analysis and use appropriate risk management.
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