Crypto Profit Calculator: P&L, ROI, and Your Real Breakeven
August 26, 2026
3 min read
Crypto Profit Calculator
Profit, ROI, and the number everyone skips: your real breakeven after fees.
Assumes a single buy and single sell at the prices entered, with the same fee rate both ways. Spreads, funding costs, and network withdrawal fees are extra in real life. Tax treatment varies by country and holding period; the tax field is a rough estimate, not advice. Educational tool, not financial advice.
What this calculator refuses to lie about
Every profit calculator can multiply two numbers. The lies live in what gets left out.
Fees come out twice, on the way in and the way out, and they move your breakeven before the market does anything. At a 0.5% fee each way, you need roughly a 1% gain just to reach zero; on a simple-interface trade at 1.5% per side, the market owes you 3% before your first real dollar. That’s why the breakeven price gets its own box above, and why the fee you pay depends heavily on which screen you traded from.
And a profit isn’t yours until two exits happen: the sale, and the tax. The optional tax field gives a rough after-tax view, because in many countries realized crypto gains are taxable, and the difference between chart profit and kept profit has ruined more spreadsheets than any crash.
Reading the results honestly
Unrealized profit (using the current price as your sell price) is a mood, not money. It changes by the hour and it isn’t taxed, which is precisely because it isn’t yours yet.
The underwater case deserves its own respect: percentage math is asymmetric, so a 50% loss needs a 100% recovery, and the calculator will tell you exactly what climb your position requires. If that number shocks you, the position sizer exists so the next entry can’t shock you.
For repeated scheduled buys rather than a single entry, this isn’t your tool: the DCA backtest calculator handles multi-purchase history against real prices.
FAQ
How do you calculate crypto profit?
Net profit equals sale proceeds minus purchase cost minus all fees: coins bought times sell price, less the sell fee, less your original investment (which already lost a buy fee). ROI is that profit divided by the investment. This calculator handles both, plus the breakeven price fees create.
Are trading fees really that significant?
More than most people track. Fees charge both directions, so a 0.5% rate costs about 1% round-trip and a 1.5% simple-interface rate costs 3%, before spreads. On frequent trading, fee drag routinely exceeds what most traders make; on single long-term positions, it’s a one-time toll worth knowing precisely.
What is a breakeven price?
The price at which selling returns exactly your original investment after all fees, always slightly above your buy price. It’s the honest zero line: gains only start above it, and the gap between buy price and breakeven is your fee structure made visible.
Is unrealized crypto profit taxed?
Generally no: most countries tax gains when realized through a sale, swap, or purchase, not while you hold. But swapping one crypto for another commonly counts as a realization, which surprises people. Rules vary by country and holding period, so treat the tax field here as a rough planning number.
Why is my real profit smaller than the chart shows?
Three subtractions the chart ignores: fees on both sides of the trade, the spread between displayed and executed prices, and taxes on the realized gain. A chart shows the asset’s journey. Your profit is that journey minus every toll booth, which is exactly what this calculator computes.
