Calculate cryptocurrency trading gains and losses with buy/sell prices, fees, and portfolio performance across multiple transactions.
Enter the quantity traded, its purchase price, its sale price, and the fees charged on each side. The calculator converts those entries into purchase cost, net sale proceeds, profit or loss, and a percentage return, then combines multiple transactions into portfolio totals. A common surprise is that fees affect both sides of the trade: the purchase fee raises the amount invested, while the sale fee lowers the amount recovered. The result measures trading performance, not tax liability.
A concrete input and expected output from the current implementation.
Input
Buy: 2 coins at $100 each, with a $2 fee Sell: 2 coins at $125 each, with a $3 fee
Expected output
Cost including buy fee: $202.00; net sale proceeds: $247.00; profit: $45.00; return on cost: 22.28%.
The purchase costs $200 plus $2, while the sale produces $250 minus $3. The $45 profit divided by the $202 purchase cost is 22.277 percent, which rounds to 22.28 percent.
For a completed trade, gross purchase cost is quantity multiplied by buy price, and gross sale value is quantity multiplied by sell price. The buy fee is added to cost, while the sell fee is subtracted from proceeds. Net profit or loss is net proceeds minus total purchase cost. A negative difference represents a loss.
Each transaction contributes its recorded cost, proceeds, fees, and gain or loss to the portfolio result. This permits comparison of several trades without treating one winning percentage as representative of the entire set. The entered transaction data is processed in the browser and is not uploaded, which is relevant when the rows disclose holdings or trading history.
Not necessarily. The calculator reports the difference between the entered purchase cost and net sale proceeds. Tax treatment can depend on jurisdiction, transaction dates, cost-basis records, lot identification, asset transfers, and other facts that are not established by simple trade arithmetic. Use the result as a performance calculation, not as a completed tax return figure.
Yes, if the transaction uses only the quantity being sold and the corresponding purchase cost for those units. Do not assign the full cost of a larger holding to a smaller sale. When units came from purchases at different prices, enter the intended lots separately; otherwise the result may not represent the cost basis you meant to analyze.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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