Trading Profit/Loss Calculator

About Trading Profit/Loss Calculator

Trading Profit/Loss Calculator is engineered to solve a specific workflow challenge: Calculate net P&L, ROI %, and break-even price for a long or short trade. Supports commission fees and multiple currencies. Using it is a three-step job: 1) Open Trading Profit/Loss Calculator and review the inputs, units, and data-handling notice shown on its page, 2) Enter the information requested by this tool and adjust only the options that apply to your task, 3) Review the result and use the available copy, download, or reset controls. Built as a focused utility in our calculators library, it is available in a modern desktop or mobile browser without requiring account registration or software installation.

Trading Profit/Loss Calculator is a free, browser-based trading calculator from ProfitTool. Calculate net P&L, ROI %, and break-even price for a long or short trade. Supports commission fees and multiple currencies. Review any usage notes shown on this page before relying on its availability. Review the tool's data-handling notice before entering sensitive information; some features store settings locally or contact external services.

If you came here from the Crypto Profit Calculator, try Amazon FBA Profit Calculator to finish the job.

How to use Trading Profit/Loss Calculator

1. 1Open Trading Profit/Loss Calculator and review the inputs, units, and data-handling notice shown on its page.
2. 2Enter the information requested by this tool and adjust only the options that apply to your task.
3. 3Review the result and use the available copy, download, or reset controls. Processing and storage behavior vary by tool.

Working alongside the Daraz Profit Calculator? Crypto Profit Calculator handles the follow-up case.

Common Mistakes to Avoid

Already used our Amazon FBA Profit Calculator? Daraz Profit Calculator covers the other half of the workflow.

Technical Limitations & Boundary Conditions

• Ignores taxes, dividends, borrowing costs on short positions and overnight financing, all of which are jurisdiction- and broker-specific.
• Assumes entry and exit fill at the prices entered. Partial fills and slippage change the realised average price.
• Commission is modelled as a flat percentage per leg. Brokers with per-share, per-contract or minimum-ticket pricing need those converted to an equivalent percentage first.
• Results describe a single trade in isolation and say nothing about the expected value of repeating it. This is arithmetic, not advice.

Pro Tips & Best Practices

• Enter exact numbers — the calculator handles rounding at the end for accuracy.
• Check the displayed units, dates, and assumptions; currency selection may format values without converting them.
• Treat estimates as planning aids and verify tax, fee, health, and lending inputs with authoritative sources.

Profit, Loss, Return and Break-Even Formulas

This is instrument-agnostic entry-and-exit arithmetic for shares, crypto or any asset quoted in a single currency — no pips, lots or leverage involved. Commission is a percentage charged on each leg, so it is calculated twice, against the entry notional and again against the exit notional. That is why the break-even price is never the entry price: it is offset by the round-trip fee spread across your quantity, and on small positions that offset can be wider than the move being traded.

Gross P&L = (Exit − Entry) × Quantity        (long)
Gross P&L = (Entry − Exit) × Quantity        (short)
Round-trip commission = (Entry × Qty × C%) / 100 + (Exit × Qty × C%) / 100
Net P&L = Gross P&L − Round-trip commission
Return % = Net P&L / (Entry × Quantity) × 100
Break-even price = Entry ± (Round-trip commission / Quantity)   (+ long, − short)

Worked Step-by-Step Example

Gross P&L = ($46.10 − $42.50) × 250 = $900.00
Entry leg fee = ($42.50 × 250 × 0.1) / 100 = $10.63
Exit leg fee  = ($46.10 × 250 × 0.1) / 100 = $11.53
Round-trip commission = $22.15 (2.46% of the gross move)
Net P&L = $900.00 − $22.15 = $877.85
Cost basis = $42.50 × 250 = $10,625.00
Return = $877.85 / $10,625.00 × 100 = 8.26%
Break-even = $42.50 + ($22.15 / 250) = $42.5886

Popular Use Cases

• Case 1
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• Case 2
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• Case 3
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• Case 4
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Frequently Asked Questions

Guides that explain Trading Profit/Loss Calculator

Background reading from the ProfitTool Knowledge Hub.