| Sell price | Profit | ROI |
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How crypto profit is calculated
Gross profit is simply (sell − buy) × amount. But you pay a fee when you buy and again when you sell, so your net profit is lower. This calculator subtracts a fee on both sides (default 0.1%) and shows your ROI as a percentage of what you actually invested. For a leveraged position's profit including funding, use the real futures profit calculator or PnL / ROE. Before you enter, size the trade with the position size calculator and check your liquidation price.
Spot profit is simpler than futures but fees still cut into it
Buy 1 ETH at $2,000, sell at $2,400 — profit is $400, or 20%. Add a 0.1% buy fee ($2) and 0.1% sell fee ($2.40), take-home is $395.60. Not life-changing, but at scale or high frequency it matters.
Capital gains tax is the other thing people forget to model. In most countries the $400 profit is taxable at income or capital gains rates. After a 30% effective tax rate, $400 becomes $280 in actual purchasing power gained. Some jurisdictions tax unrealized gains, some only on disposal — worth knowing before you celebrate the number on screen.
For futures profit the math is different: profit = (exit − entry) ÷ entry × notional. Collateral isn't the base — notional is. Use the PnL calculator for leveraged positions.
Related: ROI calculator, tax-loss harvesting, CAGR calculator.