Consistency rule calculator
Pick an eval or type the firm's best-day limit, then paste one day's net result per line. The calculator divides your best day by your total profit, tells you if the rule is met, and shows the total you actually need: the profit target or your best day divided by the limit, whichever is bigger.
How to read it
Each line is one trading day, net of fees. The calculator finds your best day, adds up every day and shows your best day as a share of the total.
- Rule met so far: your best day is inside the limit. Keep trading toward the target.
- Best day is over the limit: you haven't failed anything. The total you need just went up, and the calculator shows the new number and how much is left.
- Biggest day that keeps the target where it is: the profit target times the limit. On a Topstep 50K that's $3,000 × 55% = $1,650. Go bigger and the finish line moves.
The example above is a 50% rule on a $3,000 target. The four days add up to exactly $3,000, so the target is hit, but the $1,800 day is 60% of it. The rule asks for $1,800 ÷ 50% = $3,600 in total: $600 more, on days smaller than $1,800.
Where the rule applies
Some firms check it on the eval, some only on payouts from the funded account, and some don't have one at all. The consistency rules guide has the firm-by-firm table, and the list of evals without a consistency rule is built straight from our firm data.
On payouts the rule usually counts profit since your last payout, not since the start. Paste only the days from the current payout cycle when you check a funded account, for example an Apex PA or a Topstep XFA on the Consistency path.
What it simplifies
- It treats the limit as "at or under". Apex words its payout rule as "under 50%", so a day exactly on the line fails there.
- It doesn't know your firm's day boundary. Topstep locks the day at 3:10 PM CT, Apex at the market close. Put each day where your firm puts it.
- It doesn't check the drawdown. A plan that fixes the best-day share can still hit the floor; the drawdown calculator shows that side.
Turn it into a plan
Before day one, divide the target by the number of days you're willing to trade and cap each day under the "biggest day" number. The Topstep Combine guide walks through that plan for a 50K, and the simulator runs it on your real trades.
Questions people actually ask
How do I calculate a consistency rule?
Divide your best day by your total profit. With a $1,400 best day and $2,600 total you're at 53.8%. If the limit is 50%, you need $1,400 ÷ 0.5 = $2,800 of total profit before the rule is met.
Do losing days count in the total?
Yes. The total is your net profit, so a losing day lowers it and pushes your best-day share up. The calculator sums every line, losses included.
Is 50% the same at every firm?
No. Topstep's Combine allows a best day at or under 55% of total profit, while Apex says no single day may be 50% or more of the profit in a payout cycle. A day right on the line can pass at one firm and not the other.
Now try it with real trades
The calculator shows the math. The simulator shows what happens when you actually trade the rules day after day.
Open the simulator