Trading Profit and Loss Calculator

Enter entry, exit, quantity, direction, and fees. The tool returns gross P/L, fees, net P/L, percentage return, and optionally the impact on a stated account balance.

1. Pick long or short.
2. Enter entry price, exit price, and quantity.
3. Add fees or commission if relevant.
4. Optionally enter your account balance to see the percentage impact.
5. Read gross P/L, net P/L, and the percentage return.

Long Gross P/L = (Exit − Entry) × Quantity
Short Gross P/L = (Entry − Exit) × Quantity
Net P/L = Gross P/L − Fees

Long 100 units, entry $50, exit $54, $5 in fees → gross P/L $400, net P/L $395, 7.9% return on a $5,000 base.

• Confusing gross and net P/L — fees matter, especially on small trades.
• Mislabeling shorts. Profit on a short is entry − exit, not the other way around.
• Comparing P/L across very different position sizes without normalizing.