Liquidation price calculator
Estimate where an isolated-margin perpetual position reaches its maintenance margin. Enter your entry price, leverage and the venue’s maintenance margin rate.
The formula
For an isolated position with margin equal to notional ÷ leverage, liquidation happens when equity falls to the maintenance margin. For a long: liquidation price = entry × (1 − 1/leverage) ÷ (1 − maintenance rate). For a short: entry × (1 + 1/leverage) ÷ (1 + maintenance rate).
Example: a 10× BTC long at 100,000 with a 1.25% maintenance rate gives 91,139.24, an 8.86% fall. This matches the worked example in our liquidation guide.
What this does not include
Trading fees, funding payments, cross-margin balances, tiered maintenance rates for large positions and each venue’s own mark-price rules all move the real level. Use the venue’s own position screen before trading. Maintenance rates differ by venue and market; check the venue’s documentation.