Operating Margin Calculator Formula

Understand the math behind the operating margin calculator. Each variable explained with a worked example.

Formulas Used

Operating Margin

operating_margin = revenue > 0 ? (operating_income / revenue) * 100 : 0

Total Operating Expenses

operating_expenses = revenue - operating_income

Variables

VariableDescriptionDefault
revenueRevenue(USD)1000000
operating_incomeOperating Income (EBIT)(USD)200000

How It Works

How to Calculate Operating Margin

Formula

Operating Margin = (Operating Income / Revenue) x 100

Operating margin isolates the profitability of core business operations by excluding interest, taxes, and non-operating income. It reveals how efficiently management controls operating costs. Improving operating margin year over year signals growing operational discipline and pricing power.

Worked Example

A company has $1,000,000 in revenue and $200,000 in operating income.

revenue = 1000000operating_income = 200000
  1. 01Operating Margin = ($200,000 / $1,000,000) x 100 = 20%
  2. 02Total Operating Expenses = $1,000,000 - $200,000 = $800,000
  3. 03Twenty cents of every revenue dollar is operating profit.

Frequently Asked Questions

How does operating margin differ from net profit margin?

Operating margin measures profit from core operations (before interest and taxes), while net profit margin measures the bottom line after all expenses including interest, taxes, and non-operating items.

What is a good operating margin?

It varies widely. Software companies often achieve 25-40%. Retail typically runs 2-10%. Manufacturing ranges from 5-15%. Compare against industry peers rather than using a universal benchmark.

Learn More

Guide

How to Calculate Profit Margin

Learn how to calculate gross, operating, and net profit margins step by step. Understand what healthy margins look like across industries and how to improve yours.

Ready to run the numbers?

Open Operating Margin Calculator