Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Profit before tax
$12,780.00
Profit after tax
$10,224.00
Return on investment
60.61%
Break-even sell price
$42,337.35
Total cost including fees
$21,084.00
Net proceeds
$33,864.00
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter buy price ($).
- 2Enter sell price ($).
- 3Enter quantity.
- 4Enter exchange fee each way (%).
- 5Enter tax rate on gains (%).
- 6Read your profit before tax on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
Round-trip fees and spread matter far more in crypto than in equities. A 0.5% taker fee each way means you need a 1%+ move just to break even.
Worked example
Using the values the calculator loads with:
Inputs
- Buy price: 42000 $
- Sell price: 68000 $
- Quantity: 0.5
- Exchange fee each way: 0.4 %
- Tax rate on gains: 20 %
Results
- Profit before tax: $12,780.00
- Profit after tax: $10,224.00
- Return on investment: 60.61%
- Break-even sell price: $42,337.35
- Total cost including fees: $21,084.00
- Net proceeds: $33,864.00
What each field means
Inputs
- Buy price ($)
- The buy price used in the calculation, measured in $. Starts at 42000 $ so you have a working example on load.
- Sell price ($)
- The sell price used in the calculation, measured in $. Starts at 68000 $ so you have a working example on load.
- Quantity
- The quantity used in the calculation. Starts at 0.5 so you have a working example on load.
- Exchange fee each way (%)
- The exchange fee each way used in the calculation, measured in %. Starts at 0.4 % so you have a working example on load. Accepted range: 0–5 %.
- Tax rate on gains (%)
- The tax rate on gains used in the calculation, measured in %. Starts at 20 % so you have a working example on load. Accepted range: 0–55 %.
Results
- Profit before tax
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Profit after tax
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Return on investment
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Break-even sell price
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total cost including fees
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Net proceeds
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the crypto profit / loss calculator work?
Round-trip fees and spread matter far more in crypto than in equities. A 0.5% taker fee each way means you need a 1%+ move just to break even. The underlying maths is: Profit = (Sell × qty × (1 − fee)) − (Buy × qty × (1 + fee)).
What do I need to enter?
5 values: buy price, sell price, quantity, exchange fee each way, and tax rate on gains. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the profit before tax result mean?
It is returned as a money amount in US dollars and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
Who is this tool for?
It's built for anyone comparing money scenarios before committing — budgeting a payment, sanity-checking a quote, or seeing what a change in rate or term actually costs.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Crypto Profit Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/crypto-profit
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/crypto-profit" target="_blank" rel="noopener">Crypto Profit Calculator — RevenueLab</a> (2026).</p>
Source: [Crypto Profit Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/crypto-profit) (2026).