Crypto Profit & Loss Calculator

Knowing exactly what a trade earned or cost you, after every fee is stripped out, is what separates a real return from a number that only looks good on a screen. With the broader crypto market projected to reach a valuation of $7.7 trillion by 2026, that precision matters as much for year-end tax reporting as it does for deciding which positions to add to. The point of this tool is to handle the arithmetic so your attention can stay on the trade itself.

The math runs on a single formula: (Sell Price * Quantity Sold) - (Buy Price * Quantity Bought) - Total Fees. 'Total Fees' here covers both the buy-side and sell-side transaction costs, whether your exchange charges a percentage of the trade value or a flat amount. Say you bought 1 ETH at $5,000 with a 0.2% fee and later sold it at $7,000 with another 0.2% fee; each of those deductions is folded into the result rather than rounded away.

Fees are where most people quietly lose money on paper. Network charges and withdrawal costs rarely show up on the trade screen, yet they eat into the figure you actually walk away with, so leave none of them out. The same goes for partial sales: enter the precise quantity you sold, not the full position, or the number will drift. One thing this calculation deliberately leaves out is tax, and short-term gains can run as high as 37% in 2026, so treat that liability as a separate line in your planning.