Crypto Futures Calculator

Crypto futures calculator measures leveraged trading P&L. Position value = contract size × entry price. Margin = position / leverage. 10x leverage means 10% price move = 100% P&L on margin. 10k position with 10x leverage requires 1k margin. 5% price move = 500 P&L = 50% return on margin. Same 5% move against you = 50% loss.

Example: long Bitcoin at 40k with 10x leverage, 4k margin, 1 BTC contract. Bitcoin rises to 42k (5% move). Gross P&L: 2k. Fees (0.05% × 2): 40. Net P&L: 1,960. Return on margin: 49%. Same Bitcoin drops to 36k (10% move): -4k. Margin wiped out, position liquidated, lose entire 4k margin.

Crypto futures risks: (1) Liquidation - distance to liquidation = 1/leverage. 10x leverage = liquidation at 10% adverse move. 100x leverage = liquidation at 1% adverse move (almost certain death). (2) Funding fees on perpetual contracts (8-hour intervals, 0.01-0.05% typical). (3) High volatility (Bitcoin 50%+ daily moves possible). (4) Exchange counterparty risk (FTX collapse 2022). Beginners should never use leverage above 3x. Most retail traders lose money on crypto futures - house typically wins long-term via fees and liquidations.

Worked Example

A trader opens a long position on Ethereum with these inputs:

• Contract size: 10 units
• Entry price: 2,000
• Exit price: 2,200
• Leverage: 5x
• Fees per side: 0.10%

Position value = 10 × 2,000 = 20,000. Margin required = 20,000 ÷ 5 = 4,000. Price move = 200 (10% gain). Gross P&L = 2,000. Total fees (entry + exit) = (20,000 × 0.001) + (22,000 × 0.001) = 42. Net P&L = 1,958. Return on margin = 1,958 ÷ 4,000 = 48.95%. Liquidation price occurs at 1,600 (a 20% decline from entry, matching 1/leverage).

When This Calculator Matters

This tool illustrates P&L outcomes across different leverage levels, entry/exit prices, and fee structures. Traders use it to model position sizing before execution, understand margin requirements, and estimate liquidation distance. It also shows how fee drag compounds at higher leverage multiples.

What This Does and Does Not Capture

The calculator models entry-to-exit P&L and margin mechanics. It does not account for funding rates on perpetual contracts, slippage during order execution, or dynamic leverage adjustments during volatile market moves. It treats fees as simple percentages and does not model time decay or partial liquidation mechanics. Results are educational illustrations only, not performance forecasts.