Business Tools
Profit Margin Calculator
Work out profit, profit margin, and markup from cost and selling price.
✓ Everything runs locally in your browser. Nothing you enter is uploaded or sent anywhere.
How to use this profit margin calculator
Enter what an item costs you and what you sell it for, then press Calculate. Profit is the simple difference; margin divides that profit by the selling price, while markup divides it by the cost — two different measures that are easy to confuse. Any currency works, and decimals are welcome.
How to use Profit Margin Calculator
- Add your input — a file, text, or values depending on the tool.
- Adjust the options to get the result you want.
- Download or copy the result. Nothing is uploaded or stored.
About this profit margin calculator
Use this focused browser utility to get a practical result without uploading your files or creating an account. It is designed for quick, repeatable work on desktop and mobile.
Frequently asked questions
Are my files uploaded?
No. Processing happens locally in your browser.
Can I use this on my phone?
Yes. The workspace is designed around comfortable touch controls.