Crypto Profit and Loss Calculator

The formula

Total cost = buy price × quantity × (1 + buy fee %). Proceeds = sell price × quantity × (1 − sell fee %). Net result = proceeds − total cost, and the percentage is the net result divided by the total cost.

Worked example

Buying 0.5 units at $25,000 with a 0.5% fee costs 0.5 × 25,000 × 1.005 = $12,562.50. Selling at $30,000 with a 0.5% fee returns 0.5 × 30,000 × 0.995 = $14,925.00. The net result is $2,362.50, or about 18.8% of the cost. The figures are illustrative, not a prediction of any price.

How to use it

1. Enter the price you paid per unit.
2. Enter the price you sold at, or a price you want to test.
3. Enter the quantity involved.
4. Add the percentage fee charged on each side, if any.

Limitations

• It assumes a single buy and a single sell at one price each.
• Network withdrawal fees and exchange spreads are not included.
• Tax is not included and can change the outcome materially.
• Testing a higher sell price shows a scenario, not an expected outcome.

Common mistakes

• Entering a fee in dollars where a percentage is expected.
• Using the total amount spent instead of the price per unit.
• Forgetting that the buy fee increases the cost basis.
• Comparing results across exchanges with different fee schedules.

Educational tool only — not financial or tax advice.