Operating Margin Calculator
Operating profitability trends over time.
Operating margin = Operating income / Revenue. It measures profitability from core operations before interest and taxes. Improving operating margin means better cost control or pricing. This calculator helps you compute and track operating margin.
Inputs
Results
Operating income: $20,000
Operating margin: 20%
Insights
Formula
Operating income = Revenue - COGS - OpEx Operating margin = Operating income / Revenue
Input Definitions
What does each input mean?
- Revenue
- Total revenue from core operations. Top line before any costs.
- COGS
- Cost of goods sold—direct costs to produce or deliver your product/service.
- Operating expenses
- Sales, marketing, R&D, admin, and other operating costs. Excludes interest and taxes.
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The Profitability Metric That Shows How Well You Run the Business
Operating margin strips out interest and taxes to show how profitable a business is from its core operations — it’s the clearest measure of whether the underlying business model is working, independent of financing structure or tax strategy. It’s the number most used by investors and acquirers to compare businesses within an industry, and the metric that shows whether growth is translating into operational efficiency.
Use this when you’re preparing financials for an investor or acquirer, when you want to track whether your margins are expanding or contracting as the business grows, or when you want to benchmark your operational efficiency against industry norms. Improving operating margin requires both pricing discipline and cost control — tracking it separately makes both more visible.