Free calculators
Crypto futures calculators
Four calculators for planning a crypto futures trade before you place it: how big the position should be, where it gets liquidated, what each target pays in R and what the trade made after fees. They work on USDT-margined perpetuals and run in your browser.
Last updated: 1 November 2026
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size = risk ÷ (stop distance + fees)Position size calculator
How many coins to trade so a stop-out costs what you planned.
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long liq ≈ entry × (1 − 1/L) ÷ (1 − MMR)Liquidation price calculator
Where an isolated long or short gets liquidated at your leverage.
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R = reward ÷ riskRisk/reward calculator
The R of each target, the blended R and the break-even rate.
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net = size × move − feesFutures PnL calculator
Net profit or loss after fees, ROE on margin and the price move.
Using them together
The position size calculator turns the stop into a size. Before you pick the leverage, check the liquidation line against that stop with the liquidation price calculator. The risk/reward calculator shows what the plan pays in R and how often it has to work, and the PnL calculator is for afterwards, or for seeing what a partial exit pays.
What they assume
- USDT-margined linear perpetuals. Profit and loss are paid in USDT. Coin-margined (inverse) contracts use different formulas.
- Fees as a percentage per side. The position size and PnL calculators charge them on the position’s value at entry and again at exit. The risk/reward and liquidation calculators leave fees out, and none of the four count funding payments or slippage.
- Isolated margin with a single maintenance rate. Exchanges work from the mark price and tier tables, so their own figure can differ a little.
- Nothing you type leaves the page. The arithmetic runs in your browser. You don’t need an account, and nothing you enter is saved or sent anywhere.