Liquidation Calculator

How the Liquidation Calculator works

Estimates the liquidation price of a USDT-margined linear futures position in isolated margin from side, entry, leverage and maintenance margin rate, and grades the safety buffer. For traders who want to know how far price can move before liquidation.

What you enter

• Side: Long or Short
• Entry price (USD), default 50,000
• Leverage: 1× to 125× (number box or slider), default 10×
• Maintenance margin (%), 0.1 to 10, default 0.5; must be below 100 / leverage

What it shows

• Estimated liquidation price (USD)
• Safety buffer (% distance from entry)
• Risk level: Wider Buffer (≥ 20%), Moderate Buffer (10–20%), Medium (5–10%), High Risk (2–5%), Extreme (< 2%)

How to use it

1. Choose Long or Short.
2. Enter your entry price.
3. Set leverage with the box or slider.
4. Enter the exchange's official maintenance margin rate (%) for your contract and position tier.
5. Read the liquidation price and buffer; inputs are stored in the URL for sharing.

Formula

m = maintenance % / 100. Long: liq = entry × (1 − 1/leverage) / (1 − m). Short: liq = entry × (1 + 1/leverage) / (1 + m). Buffer % = |entry − liq| / entry × 100. Valid only if m < 1/leverage.

Worked example

Long, entry 50,000 USD, 10×, maintenance 0.5%. Liq = 50,000 × 0.9 / 0.995 ≈ 45,226.13 USD. Buffer = 4,773.87 / 50,000 ≈ 9.55%, graded Medium. The same trade as a short: 50,000 × 1.1 / 1.005 ≈ 54,726.37 USD, buffer ≈ 9.45%.

How to read the result

• The buffer is roughly 1/leverage minus the maintenance rate, so doubling leverage about halves it.
• Your stop loss should sit well before the liquidation price.
• Lower leverage widens the buffer; lower fees do not.

Limits and cautions

• Simplified model: no added margin, maintenance tier deductions, closing fees or funding.
• Not valid for cross margin, portfolio margin or coin-margined (inverse) contracts.
• Exchanges liquidate on the mark price, so the real liquidation can differ from this estimate.

Common questions

How is the liquidation price calculated?

For an isolated USDT long: entry × (1 − 1/leverage) / (1 − maintenance rate). For a short: entry × (1 + 1/leverage) / (1 + maintenance rate). Exchanges add tiers and fees.

At 10x leverage, how far can price move before liquidation?

With a 0.5% maintenance rate, roughly 9.5% against you. Higher maintenance rates or larger position tiers shrink that distance.

Why does the calculator show no result?

The maintenance rate must be below 1/leverage. At 125× the initial margin is 0.8%, so a maintenance rate of 0.8% or more leaves no buffer and returns no result.