Tools & Calculators
By Ankur Chandra | Updated at: Jul 28, 2025 12:56 PM IST
Summary

Operating profit margin (OPM) is one of the most commonly used financial ratios which displays the ability of an organization to convert net sales into operating profit. From the point of view of the investor, knowing what is OPM in the share market can give a good perspective on the stability and further development of a particular enterprise.
So in this article, we will explain what operating profit margin is, how to calculate operating profit margin, and why it is important for businesses and investors. Read along!
Operating margin gives the percentage of profit that your business makes from the operations for each dollar rupee of sales. It is determined by using the operation earnings and it’s the percentage arrived out of total revenue.
To calculate operating margin:
1. Determine operating profit: Subtract the cost of goods sold (COGS) and operating expenses (like administrative costs, selling expenses, and depreciation) from total revenue.
Formula: Operating Profit = Revenue – (COGS + Operating Expenses)
2. Divide operating profit by revenue: Divide the operating profit you calculated by the total revenue to determine the operating margin.
Formula: Operating Margin = Operating Profit ÷ Revenue
Also, you can use the operating margin formula, which is:
Operating Margin (%) = Operating Profit ÷ Revenue × 100
For example, if your revenue is Rs. 10 lakhs, COGS is Rs. 4 lakhs and operating expenses are Rs. 2 lakhs:
This means your business keeps 40 paise from every rupee earned after covering operational costs.
Operating margin is one of the financial ratios that help you know the efficiency of your business in turning revenues into operating profit. Some more benefits of operating margin are:

While the operating margin is a useful metric, it has its limitations, especially when comparing companies across different industries. Some of these limitations include:
While all three margins—operating margin, gross margin, and net margin—provide insight into a company’s financial health, they focus on different aspects of its operations. Here’s a comparison between net margin, gross margin and operating margin:
| Margin Type | Description | Formula | Focus |
| Gross Margin | Measures the percentage of revenue remaining after subtracting the cost of goods sold (COGS). It shows how well a company can produce goods profitably. | Gross Margin = (Revenue – COGS) / Revenue | Direct costs of producing goods or services sold |
| Operating Margin | Focuses on profitability from core business operations by excluding non-operating expenses (interest, taxes). It reflects how well the company manages its operating costs. | Operating Margin = Operating Profit (EBIT) / Revenue | Core operations, including SG&A (selling, general & administrative expenses) |
| Net Margin | Represents the percentage of revenue left after all expenses, taxes, and interest have been deducted. It shows the company’s overall profitability. | Net Margin = Net Income / Revenue | Total profitability after all expenses |
High operating margins are an indicator of how well your business can turn its core operations into profits. There isn’t a one-size-fits-all good margin but it depends on the industry you are in and the competitors that you have. Here’s a little more detail:
The operating margin measures a company’s ability to profit from its core operations. It is calculated using the operating profit formula, which divides operating profit by revenue. However, you might come across other profit margin types, each serving a different purpose. Here’s how the operating margin compares to other key profit margins:
Operating profit margin is one of the more powerful indicators that show the potential of a company to influence its operating and cost structure effectively to generate profit. As much as it is used in business analysis, understanding the operating margins is also important when checking the stocks in the share market.
Operating margin shows how much profit a company makes from its main operations after covering costs like salaries and materials but before paying interest or taxes. It’s calculated as a percentage of revenue. The operation profit margin formula is:
Operating Margin = (Operating Profit ÷ Revenue) × 100
The operating profit margin formula measures profitability from core operations, excluding taxes and interest. In contrast, the net profit margin considers all expenses and income, including taxes, interest, and one-time items. Also, the operating margin focuses on operational efficiency, whereas the net margin provides a broader view of overall profitability.
A high operating margin indicates strong operational efficiency. It shows that a company effectively controls costs and generates significant profit from its core business activities. In the share market, a high OPM suggests financial health and efficient management. However, comparisons should be made within the same industry, as benchmarks vary.
The operating margin ratio influences decisions by highlighting the following:
No, a low operating profit margin isn’t always negative. It might reflect: