Operating Margin Calculator
Profit from operations, before interest and tax.
Operating margin (EBIT)
17.0%
$17,000 operating profit
Excludes interest and tax, so it compares two businesses independently of how they are financed or where they are taxed.
How the Operating Margin Calculator works
Operating margin measures the business as a business, stripped of how it is financed and where it is taxed. Because it excludes interest and tax, it is the fairest way to compare two companies whose debt levels or jurisdictions differ.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
How is operating margin calculated?
Operating income ÷ revenue × 100, where operating income is revenue minus cost of goods minus operating expenses. It is also called EBIT margin — earnings before interest and tax.
How does operating margin differ from net margin?
Operating margin stops before interest and tax; net margin includes them. Two identical businesses with different debt loads will show the same operating margin and very different net margins, which is exactly why the distinction exists.
What is a healthy operating margin?
For ecommerce, roughly 10-20% is solid and above 20% is strong. Marketplaces and low-touch digital models run higher; businesses with heavy fulfilment or high advertising costs run lower.
Why would operating margin fall while revenue grows?
Usually because acquisition cost is rising faster than sales. Growth bought with increasingly expensive advertising raises revenue and compresses margin at the same time — a pattern worth catching early, because it accelerates.