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Operating Margin Calculator

Business

Operating margin shows how many paise of every rupee of sales survive as operating profit — enter revenue and operating income to see the ratio instantly.

In short: The Operating Margin Calculator is a free online tool that lets you measure operating margin — operating income as a percentage of revenue — instantly, with charts, a worked example and the exact formula.

Operating margin

15%

Operating income

₹15,00,000

EBIT

Revenue

₹1,00,00,000

Revenue vs operating income

How much of every rupee of revenue is left as operating profit.

Operating margin breakdown

Operating margin breakdown
MetricAmount
Revenue₹1,00,00,000
Operating costs₹85,00,000
Operating income₹15,00,000

Operating income is revenue less operating costs, before interest and tax.

How the Operating Margin Calculator works

Formula

Operating margin = Operating income / Revenue × 100
Operating income
Profit from operations (EBIT), before interest and tax
Revenue
Total sales for the period

Step-by-step calculation

Worked with the default values.

  1. 1

    Operating margin

    ₹15,00,000 ÷ ₹1,00,00,000 × 100

    = 15%

How it works

  • Operating income is what remains after all operating costs — COGS, salaries, rent, depreciation — are deducted from revenue, but before interest and tax.
  • Dividing it by revenue expresses operating profitability as a percentage that is comparable across companies of different sizes.
  • A rising operating margin signals improving cost control or pricing power, while a falling one warns of margin pressure.

Examples

₹1 crore revenue with ₹15 lakh operating income

A 15% operating margin.

A firm earning ₹6 lakh operating income on ₹30 lakh revenue

A 20% operating margin.