Crypto Futures Calculators
Six pure-math tools for perpetual-futures pricing: liquidation price, PnL after fees, position size, margin, funding rate and break-even. Per-exchange maintenance and fee rates included.
Liquidation Price
Where the position closes out. Enter entry, leverage and direction; we apply the right Binance / Bybit / OKX / Hyperliquid maintenance-margin tier.
Open →Futures PnL
Net profit after open / close fees on a perpetual round-trip. Maker vs taker, exchange-specific rates.
Open →Position Size
Risk-based sizing — given a max loss in USD and a stop-loss distance, get the position notional that respects that risk.
Open →Futures Margin
Initial margin required to open a perpetual position, plus the entry fee. Per-exchange tier rates.
Open →Funding Rate
Estimate funding paid or received over a holding window. Pre-fills the live 8h rate from BTC, ETH, SOL and other major perps.
Open →Break-even
Price you need to cover open / close fees and a holding window's funding. The honest minimum target.
Open →When to use which calculator
Six small tools for crypto perpetual futures. Each one answers a specific question you face before, during or after a trade.
Start with the Position Size Calculator before you open. It tells you exactly how many BTC, ETH or SOL contracts to buy so that hitting your stop loses a fixed amount of your account. Skip this step and you cannot control risk.
Next, the Margin Calculator confirms how much collateral the position will lock up. At 10× leverage on Binance a 0.1 BTC position requires roughly 10% of notional in initial margin plus a small opening fee.
Once the position is sized, run the Liquidation Price Calculator. It applies the right Binance, Bybit or OKX maintenance-margin tier to your notional and outputs the mark price where the exchange would force-close. Use it to confirm your stop loss sits well clear of the liquidation level.
The Funding Rate Calculator covers the holding window. For a multi-day perp hold it estimates total funding paid or received using the live 8h rate, so you can see whether crowded positioning makes the position structurally expensive.
After exit, the PnL Calculator gives net profit after both opening and closing fees on the chosen exchange. The Break-even Calculator is the honest minimum target: the smallest move you need to cover round-trip fees before any of the move counts as profit.
Frequently asked questions
Break-even is the exit price where your position covers both opening and closing fees. PnL is the dollar result at any exit price you choose. Break-even is the minimum target; PnL tells you the actual profit or loss above or below it.
Without sized risk, a few losing trades in a row can wipe out months of gains. The Position Size Calculator translates 'I'll risk 1% of my account' into the exact BTC, ETH or SOL quantity you should buy so that hitting your stop loses that 1% and no more.
Binance USDⓈ-M, Bybit USDT futures, OKX swaps and Hyperliquid. Maintenance-margin tiers, taker and maker fee rates and funding cycles match each exchange's published schedule. Hyperliquid uses coin-specific flat maintenance margin instead of a notional tier ladder.
Yes. All six calculators are free to use without sign-up. They run entirely in your browser. Nothing is logged or sent to MarketTrace or any exchange.