Bybit Liquidation Calculator

Your liquidation price is the mark price at which your futures position is force-closed because your margin balance has fallen to (or below) the maintenance margin requirement. For a leveraged position on Bybit USDT Perpetual, the math is:

Long:  liq_price = entry × (1 − 1/leverage) / (1 − mmr)
Short: liq_price = entry × (1 + 1/leverage) / (1 + mmr)

The maintenance margin rate (mmr) depends on your position's notional size. Bybit USDT Perpetual uses a tiered schedule: the bigger your position, the higher the rate. The tiers used in this calculator are sourced from Bybit USDT Perpetual's public documentation as of 2026-05-19.

Isolated vs cross margin. In isolated mode, only the margin posted to this position absorbs losses; the liquidation price depends only on entry, leverage, and mmr. In cross mode, your full account balance backs the position. This calculator's cross simulation assumes no other open positions: it computes an "effective leverage" from notional / accountBalance and applies the same formula. Real cross liquidation prices on a multi-position account depend on every open position's unrealized PnL, which is outside this calculator's scope.

Why your real liquidation may differ. Exchanges apply fees and a slippage buffer at force-close, and the mark price (not your entry exchange's last price) is what triggers liquidation. Use this number as a planning tool, not a binding contract.