Profit Margin Calculator
Analyze your business profitability by calculating gross, operating, or net profit margin as a percentage of revenue. Use it when reviewing quarterly financials or comparing performance against industry benchmarks.
About this calculator
Profit margin measures how much of each dollar of revenue a business retains after expenses. There are three levels of analysis. Gross margin strips out only the cost of goods sold: Gross Margin = ((Revenue − COGS) / Revenue) × 100. Operating margin also deducts day-to-day operating expenses: Operating Margin = ((Revenue − COGS − Operating Expenses) / Revenue) × 100. Net margin subtracts all remaining costs such as interest and taxes: Net Margin = ((Revenue − COGS − Operating Expenses − Other Expenses) / Revenue) × 100. Higher percentages indicate stronger profitability. Comparing all three margins reveals where costs are eating into revenue — whether at the production level, the operational level, or through financing and taxes.
How to use
Suppose a business has Revenue = $200,000, COGS = $80,000, Operating Expenses = $40,000, and Other Expenses (interest, taxes) = $20,000. Gross Margin = ((200,000 − 80,000) / 200,000) × 100 = 60%. Operating Margin = ((200,000 − 80,000 − 40,000) / 200,000) × 100 = 40%. Net Margin = ((200,000 − 80,000 − 40,000 − 20,000) / 200,000) × 100 = 30%. Enter your own figures, select the margin type, and the calculator returns the percentage instantly.
Frequently asked questions
What is a good profit margin for a small business?
A 'good' margin varies widely by industry. Retail businesses often operate on net margins of 2–5%, while software companies may exceed 20%. As a general rule, a net margin above 10% is considered healthy across most sectors. Always benchmark your margin against industry averages rather than a universal standard, since margins reflect the cost structure of each business model.
What is the difference between gross margin and net profit margin?
Gross margin measures profitability after subtracting only the direct costs of producing your goods or services (COGS). Net profit margin goes further, deducting operating expenses, interest, and taxes as well. Gross margin tells you how efficiently you produce your product, while net margin reveals the overall financial health of the entire business. A company can have a high gross margin but a low net margin if its overhead or debt costs are excessive.
How do I improve my operating profit margin?
Operating margin improves when you either increase revenue without proportionally increasing costs, or reduce operating expenses such as rent, salaries, and utilities. Common strategies include renegotiating supplier contracts to lower COGS, automating repetitive tasks to cut labor costs, and raising prices where demand allows. Tracking operating margin monthly helps you spot trends early and respond before small inefficiencies become significant losses.