Operating Margin Calculator

They are three cuts down the same income statement. Gross margin subtracts only product costs; operating margin also subtracts overhead like payroll, software, and marketing; net margin further subtracts interest and taxes. Operating margin is the purest read on whether the business itself works, independent of how it is financed or taxed.

Around 10% is solid for e-commerce, 15–20% is strong, and low single digits are common for stores competing mainly on price. Software and digital-product businesses run far higher. Because the figure excludes financing and taxes, it is the cleanest way to benchmark your store against a competitor with a different loan or tax situation.

That the core business loses money before any financing effects — every incremental sale, at current costs, deepens the hole. Interest or tax problems can be restructured; a negative operating margin cannot. The fix has to come from the operating levers themselves: price, product cost, or overhead — and pricing usually moves the number fastest.

Close but not identical. Operating income (EBIT) includes depreciation and amortization as expenses; EBITDA adds them back. For a typical e-commerce store with little equipment the two are nearly equal, but if you own warehouses, vehicles, or capitalized software, EBITDA will read meaningfully higher than operating income.