What Is Operating Margin? Operating Margin Definition
What is operating margin? Operating margin (also called operating profit margin) is the percentage of revenue that remains as operating profit after subtracting cost of goods sold (COGS) and all operating expenses. It measures profitability from core business operations before interest and taxes.
Operating margin definition: Operating margin is the ratio of operating income (EBIT—earnings before interest and taxes) to revenue, expressed as a percentage. Operating income excludes interest expense, interest income, taxes, and non-operating items (e.g., gains/losses on investments). It reflects how much profit the company generates from its main business activities—a measure of operational efficiency.
Operating Margin Formula
The operating margin formula is:
Operating Margin (%) = Operating Income ÷ Revenue × 100
Operating Income (EBIT) = Revenue − COGS − Operating Expenses. Operating expenses include SG&A, R&D, depreciation, and amortization.
Example: Revenue $800 million, operating income $120 million → Operating margin = ($120M ÷ $800M) × 100 = 15%.
How to Calculate Operating Margin
How to calculate operating margin: Get operating income (often labeled "Operating Income" or "EBIT") and revenue from the income statement. Divide operating income by revenue and multiply by 100.
Where to find the numbers
Revenue is the top line. Operating income appears below gross profit—after COGS and operating expenses (SG&A, R&D, depreciation, amortization). If not listed, calculate: Revenue − COGS − Operating Expenses. Use the same period (quarterly or annual) for both figures. Many companies report operating margin in earnings releases.
Operating Margin vs. Gross and Net Margin
Gross margin is profit after COGS only—before operating expenses. Operating margin subtracts operating expenses—it includes more costs than gross margin. Net margin is the bottom line after all expenses, interest, and taxes.
Income statement flow: Revenue → − COGS → Gross Profit → − Operating Expenses → Operating Income (EBIT) → − Interest → − Taxes → Net Income. Operating margin sits between gross and net margin. A company can have high gross margin but low operating margin if operating expenses (e.g., sales, R&D) are high. See our gross margin and net income guides.
Why Operating Margin Matters
Operating margin shows how efficiently a company converts revenue into operating profit. It isolates the core business from financing (interest) and taxes. A high or improving operating margin suggests strong cost control, pricing power, or operating leverage. A low or declining operating margin may indicate competitive pressure, rising costs, or inefficiency. Compare to sector peers—operating margin norms vary by industry.
Operating Margin Example
Company A: Revenue $1B, operating income $200M → Operating margin 20%. Company B: Revenue $500M, operating income $50M → Operating margin 10%. Company A retains twice as much of each dollar of revenue as operating profit. Company A may have better economies of scale, lower operating expenses, or stronger pricing. Compare both to their industry averages.
Frequently Asked Questions
What is operating margin?
Operating margin is the percentage of revenue left after subtracting cost of goods sold (COGS) and operating expenses (SG&A, R&D, etc.). It measures profitability from core operations before interest and taxes. Operating margin = Operating Income ÷ Revenue × 100. It shows how efficiently a company runs its business—the profit generated from operations alone.
What is the operating margin definition?
Operating margin definition: the ratio of operating income (EBIT) to revenue, expressed as a percentage. Operating income is revenue minus COGS and operating expenses. Operating margin excludes interest, taxes, and non-operating items. It reflects the profit a company makes from its core business activities before financing and tax effects.
What is the operating margin formula?
The operating margin formula is: Operating Margin (%) = Operating Income ÷ Revenue × 100. Operating income (also called EBIT) = Revenue − COGS − Operating Expenses. Operating expenses include SG&A, R&D, depreciation, and amortization. Both figures come from the income statement.
How do you calculate operating margin?
Get operating income (or EBIT) and revenue from the income statement. Divide operating income by revenue and multiply by 100. Operating Margin = (Operating Income ÷ Revenue) × 100. Example: Operating income $150M, revenue $1B → Operating margin = 15%. If operating income is not listed, calculate it as Revenue − COGS − Operating Expenses.