How do I calculate gross margin? Enter your numbers above and the result updates instantly. For example: Revenue: $500,000 · Cost of goods sold: $210,000 → Gross margin: 58%.
Is this Gross Margin Calculator free? Yes — completely free with no sign-up or paywall. It runs entirely in your browser and keeps working offline; the numbers you enter never leave your device.
How accurate is it? It uses the standard published formula for gross margin. Results are estimates for planning — not financial, tax, medical, engineering, or legal advice.