Profit Margin Calculator
Free profit margin calculator. Find gross margin, markup percentage, and selling price from cost and revenue. Supports three modes — perfect for retail, e-commerce, and business pricing.
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What is Profit Margin Calculator?
The Profit Margin Calculator is a free, browser-based tool that helps businesses, retailers, and e-commerce sellers determine profitability and set prices. It offers three modes: find the profit margin and markup from a known cost and selling price, calculate the required selling price to hit a target margin, and work backwards from a selling price and target margin to find the maximum cost you can afford. Margin (profit ÷ revenue) and markup (profit ÷ cost) are both shown so you never confuse the two. All calculations run 100% client-side — no data leaves your device.
Key Benefits
- Three flexible modes solve pricing from any direction
- Shows profit, margin %, and markup % together to avoid common pricing mistakes
- Locale-aware currency formatting (USD / THB) for accurate financial context
- Instant results with input sanitization and safe handling of zero-cost edge cases
- Copy a complete calculation summary for quotes, invoices, and reports
- 100% client-side and offline-capable — private and fast
Common Use Cases
- •Retailers setting a selling price to hit a target gross margin
- •E-commerce sellers comparing product profitability before listing
- •Wholesalers quoting prices with a required markup percentage
- •Freelancers and agencies pricing services against a cost baseline
- •Buyers negotiating a maximum acceptable cost at a given margin
How to Use the Profit Margin Calculator
- Choose a Mode: Select Margin mode to find margin and markup from a cost and selling price, Revenue mode to find the selling price for a target margin, or Cost mode to find the maximum affordable cost at a given margin.
- Enter Your Known Values: Type your cost and revenue (Margin mode), cost and target margin (Revenue mode), or revenue and target margin (Cost mode). Enter percentages as plain numbers, e.g. 40 for 40%.
- Click Calculate: The tool instantly computes profit, profit margin, and markup. Margin equals profit divided by revenue; markup equals profit divided by cost — both are shown so you can compare them.
- Copy or Reset: Use Copy to save a full calculation summary to your clipboard for quotes, invoices, or spreadsheets. Use Reset to clear the results and start a new calculation.
Key Features
- Three calculation modes: Margin from cost and revenue, Revenue from cost and target margin, and Cost from revenue and target margin
- Computes profit, profit margin (%), and markup (%) side by side so you never confuse the two
- Locale-aware currency formatting (USD for English, THB for Thai) with two-decimal precision
- Copy a full calculation summary to clipboard for sharing in quotes, invoices, or spreadsheets
- Input sanitization guards against invalid characters, and edge cases like zero cost are handled safely
- 100% client-side and works offline — no sign-up and no data ever leaves your browser