Files stay on your device
Free. No account needed.Margin & markup calculator
Calculate unit profit, gross margin and markup from a cost and selling price.
Result
Enter your values. Your result will appear here.
How it works
- Inspect the example or enter your own input.
- Check the units and operation, then run the tool.
- Review the result, then copy or download it. Keep a copy of your original data.
Example & practical use
Starting example: Unit cost: 20 · Selling price: 30
Limits and help
Arithmetic estimate only. Include relevant fees and taxes in your inputs; no accounting or tax advice. Runs on your device without uploading input. Maximum 200,000 characters per field; numeric calculations use finite JavaScript numbers unless exact integer/decimal arithmetic is stated.
Your files are yours.
Image and text processing happens in your browser. Your files are not uploaded to our servers.
Troubleshooting
Check the unit for each field. Use a decimal point without thousands separators in numeric fields. A blank value is not the same as zero. Verify important results independently.