Max lots before breach.
What is the largest size where one stop-out still cannot end the account?
Run it on your own numbers.
Every figure comes from what you type, and the formula behind the answer is printed under it.
Max lots before breach
What is the largest size where one stopped-out trade still cannot end the account?
Largest safe size
25.00 lots
Max lots = the smaller of (account x daily loss percent) and (account x remaining drawdown percent), divided by (stop in pips x pip value per lot). One stop-out at this size lands exactly on the tighter limit, so trade below it, not at it.
How it is computed
The calculator takes the smaller of your daily allowance and your remaining total drawdown, in dollars, and divides it by the loss one lot takes at your stop distance. The result is the size at which a single ordinary stop-out lands exactly on the tighter limit, and it names which rule is the ceiling.
Runs in your browser over the numbers you type. Nothing is stored, nothing is sent anywhere, and no result is a recommendation or financial advice.
Asked about this calculator.
Short answers in the same plain arithmetic the calculator uses.
Should I trade at the max size it shows?
No. The figure is a ceiling, not a target: at that size one loss uses the entire allowance. It exists so you know how far below it your normal size sits.
Why does it ask for drawdown remaining rather than the limit?
Because the allowance shrinks as you use it. After a losing week the same rule leaves less room, and the honest ceiling is computed from what is left, not from the brochure number.
Which limit usually binds?
Early in an account the daily limit is usually tighter. Deep in a drawdown the remaining total takes over. The calculator states which one binds for your inputs so there is no guessing.
This tool provides an indicative comparison of spreads and estimated execution costs based on periodic snapshots from connected data feeds and normalized trade assumptions. Displayed values are not tradable quotes and may differ from prices available on any provider's live accounts. Spreads vary by account type, server, liquidity conditions, and time of day. Competitor names and marks belong to their respective owners; no affiliation or endorsement is implied. The "Average Prop Firm" benchmark is a computed composite of sampled competitor feeds, not the published pricing of any specific firm. Cost estimates use a normalized trade scenario and do not constitute financial advice or a prediction of trading results.