Crypto Profit Calculator
See your exact crypto profit, loss, and return after fees before you sell. Free, instant, no login.
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Last updated June 13, 2026
This tool helps identify possible missing records. It does not provide tax advice. Consult a qualified tax professional.
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How the crypto profit calculator works
It's simple math: (coins × sell price) − (coins × buy price) − fees = your profit. Enter what you bought, what you'd sell for, and your total trading fees, and you'll see your profit, your return as a percentage, and the fees you paid — instantly. Everything stays in your browser; nothing is stored.
A worked example
Say you bought 0.5 ETH at $2,000 and you're thinking about selling now that ETH is $3,200. You paid a $10 fee on the buy and would pay another $16 on the sell — $26 in fees total.
- Cost: 0.5 × $2,000 = $1,000
- Proceeds: 0.5 × $3,200 = $1,600
- Fees: $26
- Profit: $1,600 − $1,000 − $26 = $574
- Return: $574 ÷ $1,000 = 57.4%
Without the fees you'd think you made $600. The $26 difference is small here, but on a high-fee exchange or a string of small trades, fees quietly eat a real chunk of your return — which is exactly why the calculator subtracts them.
Realized vs. unrealized profit
While you still hold a coin, any gain is unrealized — it's real on a chart but it isn't money in your pocket, and it swings every time the price moves. The profit only becomes realized the moment you sell (or trade the coin for another crypto). That distinction matters for two reasons: realized profit is the only profit you can actually spend, and in the US and most countries it's the realized gain — not the paper gain — that triggers tax. Use this calculator with your real intended sell price to see what you'd actually walk away with.
Profit is not the same as your taxable gain
This tool shows your pre-tax profit so you can see the raw result of a trade. Your taxable gain can differ: it depends on your exact cost basis (including fees), how long you held the coin, and the accounting method you use across many lots. Hold for under a year and a US gain is taxed as ordinary income (short-term); hold longer and it's taxed at lower long-term rates. Once you know you have a gain, dedicated crypto tax software reconciles every transaction and produces the forms — see also when crypto is actually taxed.
Common mistakes that distort your profit
A few errors trip people up over and over: ignoring fees on both the buy and the sell, which inflates the result; forgetting the spread on instant-buy services, where the "price" already bakes in a hidden markup; mixing up profit and percentage return, so a big dollar gain on a huge position looks better than a smaller, more efficient trade; and confusing unrealized with realized profit, then being surprised when the paper gain evaporates before they sell. Entering honest numbers — real fees included — gives you a figure you can trust.
FAQ
Profit = what you sold for minus what you paid, minus fees. In numbers: (coins × sell price) − (coins × buy price) − trading fees. This calculator does it instantly as you type.
Divide your profit by what you originally paid, then multiply by 100. If you put in $1,000 and made $250 profit, that's 250 ÷ 1,000 × 100 = 25% return. The calculator shows this percentage automatically so you can compare trades of different sizes fairly.
In the US, selling crypto at a gain is a taxable event — you owe capital gains tax on the profit. How much depends on how long you held it and your income. This tool shows your pre-tax profit; tax software handles the rest.
No — it shows your profit and return before tax, so you can see the raw result. If you have a gain, crypto tax software can calculate and report what you owe.
Yes. Every buy and sell usually carries a trading fee, and on some exchanges a spread on top. Leaving fees out makes your profit look bigger than it is. Add up all the fees on both sides of the trade and enter the total — the calculator subtracts it for you.
Unrealized profit is a gain that exists only on paper while you still hold the coin — it goes up and down with the price. Realized profit is locked in the moment you sell. Only realized profit is actually yours, and in most countries only realized profit is taxed.