Operating margin reflects pricing power and cost control, before the effects of financing and taxes. Rising operating margins usually signal improving efficiency.
How to use the Operating Margin Calculator
- Revenue
- Cost of goods sold
- Operating expenses
Results update as you type, and every field accepts the units shown in its menu.
How it works
Enter revenue, COGS and operating expenses.
Tips
- Use consistent periods (a year or a quarter) for flow figures and period-end values for balances.
- Average opening and closing balances when a ratio mixes a flow with a stock.
- Benchmark against competitors in the same industry.
- Read the ratio together with others – profitability, liquidity and efficiency tell different stories.
Common mistakes to avoid
- Using sales instead of cost of goods sold for inventory ratios.
- Mixing gross, operating and net profit.
- Ignoring one-off items that distort a single year.
Inputs explained
| Field | What to enter |
|---|---|
| Revenue | Amount in your currency |
| Cost of goods sold | Amount in your currency |
| Operating expenses | Amount in your currency |
What each result means
- Operating income = [Revenue] – [Cost of goods sold] – [Operating expenses]
- Operating margin = [Operating income]÷[Revenue]×100
- Gross margin = ([Revenue] – [Cost of goods sold])÷[Revenue]×100
Example values
How the main result changes when Revenue changes and everything else stays at the example values above:
| Revenue | Operating margin (%) |
|---|---|
| 500,000 | -64 |
| 750,000 | -9.33 |
| 1,000,000 | 18 |
| 1,250,000 | 34.4 |
| 1,500,000 | 45.33 |
| 2,000,000 | 59 |
Formula
Operating income = revenue − COGS − operating expensesOperating margin = operating income ÷ revenue × 100Worked example
Inputs — Revenue: $1,000,000; Cost of goods sold: $520,000; Operating expenses: $300,000.
Results — Operating income = $180,000.00; Operating margin = 18 %; Gross margin = 48 %.
Frequently asked questions
What is a good operating margin?
15%+ is generally strong, but it varies by industry.
Is operating margin the same as EBIT margin?
Usually yes.
Does operating margin include interest?
No – interest is a financing cost.
What formula does the Operating Margin Calculator use?
Operating income = revenue − COGS − operating expenses.