Prop Firm Drawdown Calculator
Put in your firm's daily limit, max loss and your risk per trade. Out comes the money, the number of full stops you can take before each line, and how much room you have left today. Then stress-test those rules against 2,381 real signals we delivered this year, losers included.
Presets are the common shapes, not any firm's exact terms. Edit the numbers to match yours.
At 1% a trade and the book's average of +0.20R per delivered alert this year, a 10% target is roughly 50 alerts' worth of expectancy. That is an average, not a schedule; the replay below shows how lumpy the road is.
Replays the first 3 alerts that fired each day, 2026-02-24 to 2026-09-09, at your sizing, and reports how often your rules would have been hit. It measures the risk side only. It says nothing about passing.
Book snapshot 2026-09-09, days in UTC, every alert graded at the desk's entry, stop and target. Your fills, spreads, missed alerts and nerves are not in it. Past results don't guarantee anything about the next window.
The three lines under a challenge
Nearly every prop firm challenge fails on arithmetic, not analysis. Three limits sit under your account, and any one of them can end it on its own:
- The daily loss limit. Usually 4 to 5% of your starting balance, measured from the start of the firm's trading day, and it resets tomorrow. Open trades count at most firms, so a position that is deep in the red can breach it before you ever close.
- The maximum loss. Usually 8 to 12%, measured from your starting balance. The floor never moves; it is the one line that follows you through the whole challenge.
- The trailing maximum. Some firms measure the maximum from your equity high instead, so the floor climbs as you make money and never comes back down. You can be up overall and still be one bad day from the floor. Our drawdown rules explainer walks through all three with worked examples.
That one line is the whole calculator. A 5% daily limit at 1% risk is five full stops; at 2% it is two and a half, which means two, because the third one ends your day. A 10% max loss at 1% is ten straight losses. Whether ten straight losses is a realistic number is the next question, and it is the one most calculators skip.
What a losing streak really looks like
Every signal our desk delivers is graded to its stop or target and published, winners and losers, so we can answer this with a record instead of a rule of thumb. Here is the book behind the replay, 2026-02-24 to 2026-09-09:
Read that first tile twice. A book that wins about 34.6% of the time still produced 28 losses in a row, and 34 separate streaks of ten or more. If losses were independent coin flips, a run that long would be close to impossible. They are not independent. Losses cluster, because the market that stops out one breakout is usually the same market that stops out the next three. Plan for the streak the record shows, not the one the coin-flip maths promises.
The book still finished ahead, at +0.20R per alert, because the winners paid several times what the losers cost. That is the shape a challenge trader has to survive: long stretches of small losses, funded by occasional large wins. Sizing decides whether you are still in the game when the wins arrive. The full statistics, by session, timeframe and pair, are on the breakout statistics page.
How to set your risk for a challenge
- 1. Start from the max loss, not the target. Divide it by the longest losing streak you are willing to survive. Ten straight losses on a 10% max means 1% a trade, and that is the ceiling, not the plan.
- 2. Check the day. Multiply your risk by the most alerts you will take in a day. If a fully losing day lands past the daily limit, take fewer alerts or risk less. The calculator flags this for you.
- 3. Set your own stop for the day, inside the firm's. Slippage and gaps are not your friend at the limit. Two full stops down is a common place to close the platform, whatever the rules allow.
- 4. Size every trade from the stop. The position size calculator turns your risk percentage and the stop distance into lots. Every alert we send carries its entry, stop and target, so the sizing is arithmetic, not judgement.
- 5. Replay it. Run your numbers through the stress test above. If your rules would have been hit more than you can stomach over the last six months, change the rules now, while it is free.
The free prop-firm course goes deeper on all of it: the fine print, the drawdown maths, position sizing and what to do after the pass.
Questions
What is drawdown in a prop firm challenge?
Drawdown is how far your account has fallen from a reference point. Prop firms measure it two or three ways at once: a daily loss limit that resets every day, a maximum loss measured from your starting balance, and, at some firms, a trailing maximum that follows your equity high upward. Breach any one of them and the challenge is over, whatever the other numbers say.
How is the daily drawdown calculated?
Most firms take your balance or equity at the start of their trading day, then compare your equity to it through the day. A 5% daily limit on a $100,000 account is $5,000 of room. Floating losses on open trades usually count, so a position that is deep underwater can breach the limit before it ever closes. Firms differ on the reset time and on balance versus equity, so read your own rules; the calculator lets you set the numbers.
What is the difference between static and trailing drawdown?
Static drawdown measures from your starting balance, so the floor never moves: a 10% max on $100,000 is a $90,000 floor for the whole challenge. Trailing drawdown measures from your highest equity, so the floor rises as you make money and never comes back down. That is why a trailing account can be breached while it is still up overall. The calculator supports both; pick the one your firm uses.
How much should I risk per trade in a prop firm challenge?
Small enough that a normal losing streak cannot end the challenge. Our own delivered signal book has produced 28 losses in a row this year, and about 28% of losing streaks reached five. At 1% a trade, a 10% max loss survives ten straight losses; at 2%, five. Most challenge traders land between 0.25% and 1%, and the calculator shows exactly how many full stops each setting leaves you.
What happens when I hit the daily loss limit?
At most firms the account is closed or locked for the day the moment equity touches the limit, and at many it fails the challenge outright. The practical rule is to stop well before it: set your own hard stop for the day inside the firm's limit, so a slippage or a gap cannot take the decision away from you. The calculator's room-left-today figure is built for that.
Does this calculator say whether signals will pass my challenge?
No, and be wary of anything that does. The replay measures the risk side only: how often your daily limit and max loss would have been hit if you had taken our delivered alerts at your sizing, over the window shown. It counts breaches. It does not count passes, and your fills, spreads, missed alerts and nerves are not in it.
We got receipts.
Every signal our desk fires, graded in R — winners and losers, no cherry-picking. One email, every Friday.
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Educational tool, not financial advice, and not affiliated with any prop firm. Firm rules vary and change; confirm yours before you rely on any number here. Book snapshot 2026-09-09; past results do not guarantee future results.