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.

Ready to run the numbers?

Open Operating Margin Calculator