How this crypto profit calculator works
Enter your position direction and entry/exit prices, then describe your position the way you actually think about it: by quantity, by notional value, or by the margin you are posting. The calculator derives the other two automatically, works out your gross PnL, subtracts trading fees on both sides, and shows the return on margin — the number that leverage makes feel very different from the price move itself.
Long vs short
A long profits when price rises: PnL = (exit − entry) × quantity. A short profits when price falls: PnL = (entry − exit) × quantity. The calculator handles both with one switch — and the math is symmetric, which is why shorts on the way down earn exactly what longs on the way up do.
Fees matter more than they look
A 0.05% taker fee per side is 0.1% of notional round-trip — $10 on a $10,000 position. At 50x leverage that is 5% of your margin. Always run the fee-adjusted number before judging a trade idea; then check where you get liquidated with the liquidation price calculator, and whether your size fits your risk with the position size calculator.