How do I calculate OP liquidation price?

Enter your OP entry price, leverage and direction. Liquidation = Entry x (1 - 1/Leverage + MMR) for a long and Entry x (1 + 1/Leverage - MMR) for a short.

At what percentage is a OP position liquidated?

Roughly 1/Leverage minus the maintenance margin. A 10x OP position is liquidated after about a 9-10% move; 100x after about 1%.

OP Liquidation Calculator

Find your exact Optimism (OP) liquidation price — for any leverage, long or short. Free, instant and private (it runs in your browser).

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Entry price (USD) Leverage Maintenance margin rate (%)

Estimated OP liquidation price

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Distance from entry—

How OP liquidation works

Optimism perps track the broader L2 sector and react to airdrop/unlock events. Liquidation happens when losses eat through the margin backing your position. The isolated-margin estimate is Entry × (1 − 1/Leverage + MMR) for a long and Entry × (1 + 1/Leverage − MMR) for a short, where MMR is the maintenance margin rate.

Worked example — 10× OP long

A 10× OP long entered at $1.5 with a 0.5% maintenance margin rate is liquidated at about:

Liquidation price$1.36

Move to liquidation−9.50%

Because OP can move fast, keep your stop-loss well inside that level and size by risk. See how to size a position and how to avoid liquidation.

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Educational tool, not financial advice. Estimates exclude fees and funding and may differ from your exchange.