Operating Margin Calculator
Calculate operating margin from revenue and operating income (EBIT).
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How this calculator works
Operating margin measures profit from core operations before interest and tax relative to revenue.
Formula
Worked example
$18 million of operating income on $100 million of revenue produces an 18% operating margin.
How to interpret the result
Operating margin measures profit from core operations before interest and tax relative to revenue.
Assumptions & limitations
Companies may report adjusted operating metrics that differ from GAAP/IFRS operating income. Use consistent definitions for comparison.
Practical context
When this calculator is useful
Operating margin is useful for measuring how much operating income remains from each unit of revenue before interest and tax. It focuses on the economics of the core operating structure more directly than net margin.
How investors commonly use it
Investors commonly track operating margin over time to assess pricing power, cost discipline and operating leverage, while comparing companies with similar business models.
What this metric does not tell you
The metric can be distorted by restructuring items, accounting classifications and management-defined adjusted operating income. Strong margins do not by themselves indicate attractive valuation, growth or capital efficiency.