Free tool
Drawdown Calculator
Enter your account details and drawdown type to see the exact equity level that breaches your account, how much room you have left today, and whether a trailing floor has locked.
Result
How prop firm drawdown works
Every prop firm sets a maximum loss limit: a “floor” your equity must stay above. With static drawdown, the floor is fixed: a $100,000 account with a 10% limit breaches at $90,000, no matter how much profit you make first. With trailing drawdown, the floor follows your high-water mark upward. End-of-day trailing moves the floor only on your highest closing balance; intraday trailing is stricter, following your peak equity even during open trades, so a winner you let retrace can still raise your floor.
Most trailing programs also apply a lock rule: once the floor climbs to your initial balance, it stops trailing permanently. From that point you are effectively trading a static account that breaches at breakeven. This calculator models that lock, plus the daily loss limit, which is sized off your account and anchored to your start-of-day balance. Touching either floor counts as a breach at most firms.
Frequently asked questions
What is the difference between end-of-day and intraday trailing drawdown?
End-of-day trailing recalculates your floor only from your best closing balance, so unrealized profit during the day never moves it. Intraday trailing follows your peak equity in real time (including open trades), which makes it the least forgiving drawdown type.
Does the trailing floor ever stop moving?
At most firms, yes. Once the floor trails up to your initial account balance it locks there permanently. After the lock, new equity highs no longer raise the floor, and your worst case is ending back at your starting balance.
Is hitting the floor exactly a breach?
At most firms, touching the floor is enough: accounts are liquidated the moment equity reaches the limit, not only when it drops below. This calculator uses the same convention, so treat “$0 remaining” as breached, not as safe.