How do I calculate operating margin? Enter your numbers above and the result updates instantly. For example: Revenue: $500,000 · Operating income (EBIT): $95,000 → Operating margin: 19%.
Is this Operating 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 operating margin. Results are estimates for planning — not financial, tax, medical, engineering, or legal advice.