Prop Firm Drawdown Calculator — See Your Real Buffer

A fixed drawdown floor never moves -- it sits at your starting account size minus the max drawdown, no matter how the account trades. A trailing drawdown floor rises as your account hits new equity highs, and typically never comes back down even if you give profit back. Most funded evaluations trail; a shrinking number of accounts stay fixed. Check your own firm's agreement -- the two produce very different real buffers on the same account size and drawdown dollar figure.

Several firms stop a trailing floor from rising once the account reaches a certain equity level -- often once the floor would rise past the original starting balance. After that point the floor freezes at that locked level for good, even if the account keeps making new highs. If your firm does this, enter that equity level as the trail-lock threshold; leave it blank if your firm has no such lock and the floor should keep trailing indefinitely.

The highest account equity you have reached so far, including any open profit if your firm counts intraday highs (rather than only closing balances). This is the number a trailing floor is measured against -- your floor sits a fixed dollar amount below whichever your account's highest point has been, not below where the account happens to be right now.

For a growing list of firms, yes -- the preset picker above the form lets you start from that firm's own published account rules, each one sourced and periodically re-verified against the firm's own site. Prop firm rules and dollar figures still change, and not every firm or account size is covered yet, so always confirm a preset against your own current account agreement before relying on it. You can also skip the picker entirely and enter your own numbers directly, same as before.

Yes -- no signup, no card, nothing to install. If you want this same math tracked automatically against your actual trade history, with an alert before you get close to breaching, that is what a Fillbook account does.