Liquidation Price Calculator
Where a leveraged perp position gets force-closed — and how many days of funding it takes to push it there.
0.5% is the example value from our glossary. Exchanges use tiered MMR that grows with position size — take the number for your size from your venue’s margin-tier table.
Isolated margin. Cross margin depends on the equity of your whole account, so a single-position calculator cannot price it honestly.
Funding while you hold
10.95% = 0.01% per 8h, the industry base rate. Negative = your side receives funding. Live rates per venue are on the funding screener. Live funding rates across exchanges →
Formula
Long liq = Entry × (1 − 1/Leverage + MMR) Short liq = Entry × (1 + 1/Leverage − MMR)
MMR is the maintenance-margin rate (0.005 = 0.5%). Funding paid F = position size × funding APR × days / 365 is taken out of the margin, so after N days the same formula runs with (margin − F) / position size instead of 1 / leverage.
Liquidation price explained in the glossary →What this estimate ignores
- Trading and liquidation fees — they bring the real liquidation price slightly closer to entry.
- Tiered MMR — exchanges raise the rate as position size grows; enter the rate for your tier.
- Changing funding — the calculator applies one flat rate over the whole period.
- Mark vs last price — exchanges liquidate on the mark price, not on the last trade.
Why funding moves your liquidation price
On most perp venues funding is settled against the position’s margin. Every payment your side makes shrinks the collateral, so the liquidation price creeps toward entry even if the market never moves. A carry trade that looks safe at 5× on day one can sit much closer to liquidation after a month of paying a high rate on the losing leg. Delta-neutral traders feel it twice: each leg is margined separately, and the leg that pays funding is the one being drained.
Liquidation price — FAQ
How is the liquidation price of a perpetual position calculated?
For isolated margin: long liquidation = entry × (1 − 1/leverage + MMR), short liquidation = entry × (1 + 1/leverage − MMR), where MMR is the maintenance-margin rate. At $60,000 entry, 5× and 0.5% MMR a long liquidates at $48,300 and a short at $71,700.
Does funding change my liquidation price?
Yes. Funding payments are taken from the position’s margin, so every payment your side makes moves the liquidation price closer to entry. Receiving funding moves it further away. The calculator shows the liquidation price after the holding period you enter.
Why is my exchange showing a different liquidation price?
Exchanges add trading and liquidation fees, use a tiered maintenance-margin rate that grows with position size, and liquidate on the mark price. This calculator uses one MMR and no fees, so it is a close estimate, not the exchange’s own number.
Does leverage 1× mean I can never be liquidated?
A 1× long liquidates only near entry × MMR — the price would have to fall almost to zero. A 1× short still has a finite liquidation price at about twice the entry, because price can rise without limit.
What about cross margin?
In cross margin the liquidation price depends on the equity of your whole account, including other positions’ profit and loss. It cannot be priced from one position’s inputs, so this calculator covers isolated margin only.