How to Calculate Crypto Profit and Loss

Sold some crypto and not sure if you actually came out ahead? The math is simpler than it looks. Your profit is what you received when you sold, minus what you paid to buy, minus every fee along the way. Write it as a formula: Profit = Proceeds – Cost Basis – Fees. If the answer is positive, you gained; if it is negative, you took a loss. This guide walks through each piece with a clear example.

The Crypto Profit Formula

Every profit-and-loss calculation comes down to one simple idea. You compare what you got out against what you put in.

The core formula is short and worth memorizing:

• Profit = Proceeds – Cost Basis – Fees
• Cost Basis = the amount you paid to buy, including the buy fee.
• Proceeds = the amount you received when you sold, after the sell fee.

Fees matter in both directions, so count the buy fee and the sell fee. A positive result means you made money. A negative result is a loss, shown as a minus number. The same formula works for any coin or token.

What Counts as Your Cost Basis

Your cost basis is the full price you paid to own the crypto. It is the starting point for every profit calculation.

Cost basis is more than the sticker price of the coin. It includes the trading fee you paid to buy. So if you spend $1,000 on a coin and pay a $10 buy fee, your cost basis is $1,010, not $1,000.

Counting the buy fee matters because it lowers your real profit. Skipping it makes a trade look better than it was. Keep a record of the buy price, the amount bought, and the fee for every purchase.

What Counts as Your Proceeds

Proceeds are the money you actually receive when you sell. This is the other half of the formula.

Just as fees raise your cost basis, they shrink your proceeds. If you sell a coin for $1,500 and pay a $15 sell fee, your proceeds are $1,485, not $1,500. The exchange takes its cut before the cash reaches you.

So both fees work against you: the buy fee adds to what you paid, and the sell fee subtracts from what you got. Counting both gives you an honest profit number.

A Worked Example, Step by Step

Numbers make this clear. Imagine you buy and later sell a small amount of ETH. These figures are examples only and do not reflect real prices.

1. Buy: 0.5 ETH at $2,000 each = $1,000. Add a $10 buy fee. Cost basis = $1,010.
2. Sell: 0.5 ETH at $3,000 each = $1,500. Subtract a $15 sell fee. Proceeds = $1,485.
3. Profit: $1,485 – $1,010 = $475.

That $475 is your realized profit on the trade. Notice how the two fees, $25 in total, came straight out of the gain. Without them the profit would have looked like $500.

How Profit Changes at Different Sell Prices

The sell price drives the result. Using the same $1,010 cost basis and a $15 sell fee, here is how profit shifts as the price moves. These are illustrative figures.

At a $2,000 sell price the trade is a small loss, because the cost basis and fees are higher than the proceeds. That negative $25 shows how a loss appears as a minus number.

This points to a useful idea: your break-even price. It is the sell price where proceeds exactly cover your cost basis plus the sell fee, so profit is zero. Below that price you lose money, and above it you gain. In the example, you need proceeds of $1,010 to break even, which means selling the 0.5 ETH for about $1,025 before the $15 fee. Knowing your break-even keeps expectations realistic.

Turning Profit Into a Percentage (ROI)

A dollar figure is useful, but a percentage lets you compare trades of any size. This is your return on investment, or ROI.

The formula is simple:

• ROI = (Profit / Cost Basis) x 100

Using the example above: $475 profit divided by $1,010 cost basis = 0.47, or about 47 percent. So the trade returned roughly 47 percent on the money you put in. A $100 profit on a $1,000 basis is 10 percent, while the same $100 on a $200 basis is 50 percent. The percentage tells you how hard your money worked, not just how many dollars you made.

Average Cost Across Multiple Buys

Most people buy the same coin more than once, at different prices. To find profit later, you first need one blended cost basis.

The method is to add up every dollar you spent, including fees, then divide by the total units you hold. Here is an example with round numbers:

• Buy 1: 1 ETH at $2,000 + $10 fee = $2,010.
• Buy 2: 1 ETH at $3,000 + $15 fee = $3,015.
• Total: $5,025 for 2 ETH, so average cost = $2,512.50 per ETH.

Now you compare your sell price against that average of $2,512.50, not against either single purchase. A Crypto Profit Calculator can track this blended basis for you as you add buys.

Realized vs Unrealized Gains

One more distinction keeps your numbers honest. There is a big difference between profit on paper and profit in hand.

A realized gain or loss happens only when you sell. The trade is closed, and the result is locked in. An unrealized gain or loss is the change in value while you still hold the coin. It moves up and down with the market and is not final until you sell.

So if a coin you own doubles but you have not sold, that gain is unrealized and can still vanish. Only a realized result counts as money you actually kept or lost.

The Profit-Tracking Process at a Glance

Putting it all together, the workflow from buy to result follows four clear steps.

Frequently Asked Questions About Crypto Profit and Loss

Sources

This article is for general education only, not financial or investment advice. Crypto is volatile and risky, and prices, fees, rewards, and tax rules change fast and vary by country, so do your own research and consult a professional. Reviewed for accuracy by Prof. Dr. Khalil Mudassar, PhD. Last updated September 12, 2026.