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Margin Calculator
Calculate profit margin and markup percentage from a selling price and cost — for pricing any product or service.
How to use this tool
- 1Paste or type your input above.
- 2The result updates instantly.
- 3Copy the output with one click.
Frequently asked questions
How do I calculate profit margin?+
Profit margin = (revenue − cost) ÷ revenue × 100. If you sell for $100 at a $70 cost, the $30 profit is a 30% margin (and a 42.9% markup on cost).
Is my data private?+
Yes. The tool runs entirely in your browser — nothing you paste or type is uploaded to a server.