Business
Operating Margin Calculator
Calculate operating margin from operating income and revenue for the same accounting period.
- Free to use
- Runs in your browser
- Level B · Industry formula
- Last reviewed 2026-08-16
Calculator guide
How to use the Operating Margin Calculator
Operating margin compares operating income with revenue. It focuses on operating performance before non-operating items that may appear below operating income in the income statement.
Formula
Worked example
Revenue of 500,000 and operating income of 65,000 produce an operating margin of 13%.
What to keep in mind
- Revenue must be greater than zero.
- Operating income may be negative.
- Company reporting definitions can differ, so compare like with like.
Methodology
This calculator uses a deterministic formula and performs the arithmetic locally in your browser. It does not send the values you enter to a server in order to calculate the result.
Review standard: Level B · Industry formula. How calculator reviews work.
Frequently asked questions
What does this calculator calculate?
Calculate operating margin from operating income and revenue for the same accounting period.
How is the result calculated?
Operating Margin % = (Operating Income ÷ Revenue) × 100.
Can I use the result for an important decision?
Use the result as a calculation aid and verify the inputs, assumptions, and applicable professional or regulatory requirements before relying on it for an important decision.
Does CalculateMeasure store the values I enter?
The calculator performs its arithmetic in your browser. The calculator itself does not need to send your entered values to a server to produce the result.