Prop firm drawdown and risk-per-trade calculator

Enter your account size and the firm's limits to see how many dollars you can actually lose, how many full losing trades in a row fit before a daily or maximum loss breach, and when a trailing drawdown stops trailing. Start from a popular plan below or type your own numbers.

Educational, not financial advice. Challenges cost money, most traders who buy one do not pass, and no calculator creates an edge: results depend on your strategy. The math below only tells you how much room your rules leave.

Static, trailing and end-of-day trailing drawdown

Every prop firm sets a maximum loss: a floor your balance or equity must never touch. The three common shapes differ only in how that floor moves.

• Static: the floor is fixed at the starting balance minus the limit. Profit adds room, because the floor stays where it was.
• Trailing, intraday: the floor follows your highest equity in real time, open profit included. A winner that runs and comes back still lifts the floor.
• Trailing, end of day: the floor follows your highest closing balance or equity, updated once a day. Intraday spikes that fade do not count.

Many trailing rules stop trailing once the floor reaches the starting balance (sometimes the starting balance plus a small buffer). After that lock the floor behaves like a static one.

Read the chart at the day-5 close of $103,200: the static floor is still $94,000, so the room is $9,200. The end-of-day floor has climbed to $98,000 (room $5,200), and the intraday floor to $99,200 (room $4,000), because it also counted the $105,200 intraday high that faded before the close. By day 7 both trailing floors reach the starting balance and stop there: from then on they behave like a static floor at $100,000.

How the numbers are calculated

• Drawdown in dollars = account size × max drawdown %. Daily limit and risk per trade use the same account size.
• Floor: static = account size − drawdown. Trailing = highest balance − drawdown, but never above the lock level if the firm has one.
• Room = current balance − floor.
• Full losses before a breach = the largest whole number of losses that keeps the total strictly below the limit. With $10,000 of room and $1,000 per loss that is 9, because loss number 10 reaches the floor.
• Suggested max risk = room ÷ losses in a row you want to survive; each loss has to stay below it.
• Lock point = lock level + drawdown. On a $100,000 account with 6% trailing that locks at the start, the floor stops once your high reaches $106,000.
• Position size = risk per trade ÷ (stop size × value per pip or point), rounded down.

The calculator assumes every loss is a full loss at the planned size, with no slippage, commissions or overnight fees. Real losses can be larger than the stop, and some firms measure the daily limit from the start-of-day balance or equity rather than the starting account size, so leave a buffer.

Drawdown rules on popular 50K and 100K plans

Firms we have an affiliate agreement with first, then other firms by our editorial tier. One plan per firm: its most popular plan that sells a 50K or 100K account and states its drawdown type. Dollar figures are the percentage of the starting balance at the size shown; limits that are not one simple number are quoted as the firm publishes them. Confirm the current rules on the firm's site before you buy.

Figures come from our firm data, which is rebuilt with the site. Rules change without notice; the firm's own rules page is the only binding source. "(locks)" means our data says the trailing limit stops trailing at some level, such as the starting balance; "(lock not stated)" means our data does not say either way, so check the firm's page.

Frequently asked questions