Prop Firm Drawdown Calculator

Check how much you can still lose today before you break your prop firm’s daily or overall loss limit.

Account size (USD)Max daily loss (%)Max overall loss (%)Balance at the start of today (USD)Current equity (USD)

Loss you can still take today

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USD

Today’s equity floor

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USD

Overall equity floor

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USD

Result so far today

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USD

Assumes the daily limit is measured from the balance at the start of the day and the overall limit from the starting account size (static). Many firms differ: check your rules, especially for trailing drawdown.

How it works

The daily floor is the balance at the start of the day minus the daily limit, which is a percentage of the account size. The overall floor is the account size minus the overall limit. Whichever floor is higher is the one you hit first, so the room left today is your current equity minus that floor.

Example: a 100,000 USD account with a 5% daily and a 10% overall limit. If the day started at 92,000 USD, the daily floor is 87,000 USD but the overall floor is 90,000 USD. With equity at 91,500 USD you have 1,500 USD of room left, not 4,500.

Rules differ between firms. Some measure the daily limit from equity instead of balance, and some use a trailing overall limit that moves up with your profits. Read your firm’s rules and set the inputs to match.