Enter the minimum margin your venue requires to keep the position open. Typical: crypto perps ~0.5%, US stocks (Reg T) 25%, CFDs vary by instrument. What's this?
Result
- Leverage needed
- Notional value
- Margin required
- Distance to liquidation
How position sizing works here
Your liquidation price depends only on entry, leverage and maintenance margin, not on how big the position is. So the liquidation price you choose fixes the leverage, and your bankroll (used fully as margin) then sets the maximum size: max size = bankroll × leverage ÷ buy price.
This is the absolute ceiling; it spends your whole bankroll as margin. Many traders deliberately use less. If you'd rather size to a fixed risk (say, losing 2% of your account at the stop), pair this with the Risk / Reward calculator.
FAQ
Does bigger size move my liquidation price?
No. In this model liquidation depends on entry, leverage and maintenance margin only. Size scales your margin and notional together, so the liquidation price stays put.
Why can't a short liquidation be very far away?
At 1× a short is already liquidated near double the entry. Anything beyond that would need sub-1× leverage, so the calculator flags the furthest reachable price instead.