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Crypto basics
How to calculate crypto profit and ROI (with fees)
Crypto profit = what you get when you sell (after fees) minus what you paid (including fees). ROI is that profit divided by what you paid, times 100. The break-even price is the sell price where profit is exactly zero once both fees are counted.
The three numbers that matter
When you buy a coin and later sell it, you only need three numbers to know how you did:
- Profit — how many dollars you gained or lost.
- ROI (return on investment) — profit as a percentage of what you put in.
- Break-even price — the price you must sell at just to get your money back after fees.
The crypto profit calculator does all three instantly. Below is how it works, so you can check any result yourself.
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Step 1 — How many coins did you get?
When you buy, the exchange takes a fee first (for example 0.1%–1%). What is left buys coins:
Coins = investment × (1 − buy fee) ÷ buy price
Example: you invest $500 in Litecoin at $80, with a 0.5% buy fee.
- Money that buys coins: 500 × (1 − 0.005) = $497.50
- Coins: 497.50 ÷ 80 = 6.21875 LTC
Step 2 — What do you get when you sell?
When you sell, the fee is taken from the proceeds:
Proceeds = coins × sell price × (1 − sell fee)
Example: you sell all 6.21875 LTC at $95 with a 0.5% sell fee.
- Before fee: 6.21875 × 95 = $590.78
- After fee: 590.78 × 0.995 = $587.83
Step 3 — Profit and ROI
Profit = proceeds − investment
ROI = profit ÷ investment × 100
In the example: 587.83 − 500 = $87.83 profit, and 87.83 ÷ 500 × 100 = 17.6% ROI.
Notice that the price rose 18.75% (from $80 to $95) but the ROI is 17.6%. The difference is the two fees.
Step 4 — The break-even price
Break-even is the sell price where proceeds equal the investment:
Break-even price = buy price ÷ ((1 − buy fee) × (1 − sell fee))
Example: 80 ÷ (0.995 × 0.995) = $80.80. Any sale above $80.80 is a profit; below it is a loss, even though it is above what you paid per coin.
A quick reference table
| Buy fee + sell fee | Price rise needed to break even |
|---|---|
| 0.1% + 0.1% | about 0.2% |
| 0.5% + 0.5% | about 1.0% |
| 1% + 1% | about 2.0% |
| 2% + 2% | about 4.1% |
Small fees add up fast when you trade often. Instant "buy with card" options often charge 2% or more, while exchange order books usually charge 0.1%–0.5%.
If you bought several times (average cost)
Many people buy in small amounts over time — this is called dollar-cost averaging (DCA). To calculate profit, first find your average cost per coin:
Average cost = total dollars spent (including buy fees) ÷ total coins received
Example: you buy Litecoin three times, $100 each time, with a 0.5% fee:
| Buy | Price | Coins received |
|---|---|---|
| 1 | $70 | 99.50 ÷ 70 = 1.42143 |
| 2 | $80 | 99.50 ÷ 80 = 1.24375 |
| 3 | $90 | 99.50 ÷ 90 = 1.10556 |
| Total | — | 3.77074 LTC for $300 |
Average cost = 300 ÷ 3.77074 = $79.56 per LTC. Notice it is lower than the simple average of the three prices ($80): the same dollar amount buys more coins when the price is low. From here, use the same sell and ROI formulas as above with an investment of $300 and 3.77074 coins.
If you sell only part of your coins
When you sell some coins and keep the rest, split the calculation:
- Cost of the coins you sold = coins sold × average cost.
- Realized profit = proceeds after the sell fee − cost of the coins sold.
- The coins you kept still have the same average cost. Their profit is unrealized until you sell — it goes up and down with the price.
Example: you sell 2 of the 3.77074 LTC above at $95 with a 0.5% fee. Proceeds = 2 × 95 × 0.995 = $189.05. Cost of those coins = 2 × 79.56 = $159.12. Realized profit = $29.93. The remaining 1.77074 LTC keep an average cost of $79.56.
Keeping a simple table of every buy and sell (date, price, coins, fee) makes these numbers easy — and many countries require it for tax reports anyway.
Don't forget network fees
If you move coins between wallets or exchanges, each transfer pays a network fee. For Litecoin it is usually a fraction of a cent; for Bitcoin it can be much higher when the network is busy. Add those as a fixed dollar cost to your investment if they matter for your trade. See how to withdraw Litecoin for how network fees and confirmations work.
Profit in mining games is calculated differently
In AiBio.Store you do not buy a coin and wait for its price to rise. You buy machines that earn a share of block rewards, paid in USD balance, and you withdraw in crypto. So the useful numbers there are the daily cap of your machines and how many days it takes to earn back what you spent at the current rate. The AiBio mining calculator shows the caps; your Room's earnings card shows the live rate.
Frequently asked questions
What is a good ROI in crypto?
There is no fixed number. Crypto prices can rise or fall by tens of percent in weeks, so any ROI must be compared with the risk you took and the time you held. Always calculate ROI after fees.
Do I pay tax on crypto profit?
In many countries, yes — selling crypto for a profit is often a taxable event. Rules differ by country, so check with a local tax adviser.
Why is my profit lower than the price change?
Because of fees. The buy fee reduces how many coins you get, and the sell fee reduces what you receive. Both are counted in the formulas above.
How do I calculate a loss?
Use the same formulas. If proceeds are lower than your investment, profit is negative and ROI is a negative percentage.