Trailing Drawdown Calculator for Prop Firms (Free)

Your account rules

Starting balance

Maximum drawdown

Drawdown type (trailing or static)

End of dayIntradayStatic

The floor follows your highest closing balance of each day.

The floor stops trailing at

Start balanceOther levelNever

Most firms stop the trailing floor once it reaches the starting balance. Check your rulebook.

Highest end-of-day balance so far

Leave it at your starting balance if you haven't closed a day higher.

Balance now

Test a run of results

Type one result per day (losses with a minus sign) to see how the floor moves and whether the account survives.

Results, one per line

Commas count as thousands separators.

BalanceFloor

Start$51,700.00 high · $47,500.00 lowDay 5

The account fails on day 5: the balance of $48,200.00 reaches the floor of $49,200.00.

Day	Result	Balance	Floor	Room
1	$1,000.00	$51,000.00	$47,500.00	$3,500.00
2	−$500.00	$50,500.00	$48,500.00	$2,000.00
3	$1,200.00	$51,700.00	$48,500.00	$3,200.00
4	−$2,000.00	$49,700.00	$49,200.00	$500.00
5	−$1,500.00	$48,200.00	$49,200.00	Failed

How a trailing drawdown works

Every funded or evaluation account has a level where it fails. With a static drawdown that level is fixed: starting balance minus the allowance. With a trailing drawdown it follows your highest balance or equity upward, always staying the same distance below it, and it never comes back down.

The calculator uses this rule:

Static: floor = starting balance − maximum drawdown.
Trailing: floor = highest balance (or equity) − maximum drawdown, but never lower than where it started, and never higher than the lock level if your firm has one.
Room left: balance now − floor. When it reaches zero, the account fails.

Worked example

A $50,000 account has a $2,500 end-of-day trailing drawdown that locks at the starting balance. It starts with a floor of $47,500. You close a day at $51,200, so the floor rises to $48,700. Today you are at $50,400, which leaves $1,700 of room. Once a day closes at $52,500 or higher, the floor reaches $50,000 and stops moving.

Intraday vs end-of-day trailing

The two versions use the same formula but a different “highest” number. Intraday trailing watches your equity tick by tick, so if a trade is up $800 and you let it come back to breakeven, the floor has still risen $800. End-of-day trailing only looks at your balance when the day closes, which gives you more freedom inside the day.

How to protect your room

Size every trade from the room you have left, not from the full account. The position size calculator does this for forex, gold and futures.
On an intraday trailing account, take partial profit or move your stop sooner: unrealised highs count against you.
Check the daily loss limit too. Many accounts fail on the daily rule while the overall drawdown still has room.
Before you start, test your strategy's odds with the challenge calculator.

Frequently asked questions

What is a trailing drawdown?

A trailing drawdown is a loss limit that moves up as your account makes new highs. If you start a $50,000 account with a $2,500 trailing drawdown, you fail at $47,500. Reach $51,000 and the failure level rises to $48,500. It never moves down when you lose.

What is the difference between intraday and end-of-day trailing drawdown?

Intraday trailing follows your highest equity at any moment, including open profit you never closed, so a winner that reverses can still lift the floor. End-of-day trailing only updates from your balance when the trading day closes, so open swings during the day don't move it.

When does a trailing drawdown stop trailing?

Many firms stop the floor once it reaches the starting balance (some use a level slightly above it). After that it is fixed, and every extra dollar of profit adds to your room. Some accounts never lock. The rule differs by firm, so the calculator lets you choose.

Is a static drawdown better than a trailing drawdown?

A static drawdown is easier to manage because the failure level never moves: it is always the starting balance minus the allowance. A trailing drawdown punishes giving back open or banked profit, so the same allowance is tighter in practice.

Does this calculator work for my prop firm?

It works for any firm that uses a static, intraday trailing or end-of-day trailing drawdown, because you enter the amounts and pick the rule type. Firms phrase their rules differently, so read your rulebook for the exact allowance, lock level and reset time.