Prop Firm Drawdown Calculator

How to read these numbers

Max drawdown floor

This is the lowest your balance can fall to before the account is done. On a trailing drawdown the floor rises as your equity climbs, so a strong session tightens the margin you have to work with afterward. On a static drawdown the floor never moves — it stays at your starting balance minus the max drawdown for the life of the account.

Daily loss limit

The most your P&L is allowed to drop in a single session. Treat a breach as a hard stop: once you hit this number, intraday or on the close depending on the firm's own definition, walk away for the day. Check your firm's rulebook for whether open floating losses count toward this limit or only realized ones.

Safe risk per trade

A stop size small enough that only a long losing streak would breach the drawdown floor. A common target is keeping a single loss to roughly 2–5% of your max drawdown. The table below shows how many consecutive losers each risk size can absorb before you hit either limit.

These figures are estimates based on the numbers you enter. Confirm the exact rule definitions with your prop firm's official documentation before trading live.

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