# Operating Margin Calculator

URL: https://speedycalculator.com/calculators/finance/operating-margin/
Last updated: 2026-10-25

> The operating margin calculator works out operating income (EBIT) as a percentage of revenue – how much profit a company makes from its core operations per dollar of sales.

## Inputs

- Revenue
- Cost of goods sold
- Operating expenses

## Results

- Operating income
- Operating margin
- Gross margin

## Formula

```
Operating income = revenue − COGS − operating expenses
Operating margin = operating income ÷ revenue × 100
```

## Explanation

Operating margin reflects pricing power and cost control, before the effects of financing and taxes. Rising operating margins usually signal improving efficiency.

### How to use the Operating Margin Calculator

- **Revenue**
- **Cost of goods sold**
- **Operating expenses**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Enter revenue, COGS and operating expenses.

### Tips

- Use consistent periods (a year or a quarter) for flow figures and period-end values for balances.
- Average opening and closing balances when a ratio mixes a flow with a stock.
- Benchmark against competitors in the same industry.
- Read the ratio together with others – profitability, liquidity and efficiency tell different stories.

### Common mistakes to avoid

- Using sales instead of cost of goods sold for inventory ratios.
- Mixing gross, operating and net profit.
- Ignoring one-off items that distort a single year.

### Inputs explained

FieldWhat to enterRevenueAmount in your currencyCost of goods soldAmount in your currencyOperating expensesAmount in your currency

### What each result means

- **Operating income** = [Revenue] - [Cost of goods sold] - [Operating expenses]
- **Operating margin** = [Operating income]÷[Revenue]×100
- **Gross margin** = ([Revenue] - [Cost of goods sold])÷[Revenue]×100

### Example values

How the main result changes when **Revenue** changes and everything else stays at the example values above:

RevenueOperating margin (%)500,000-64750,000-9.331,000,000181,250,00034.41,500,00045.332,000,00059

## Worked example

Inputs — Revenue: $1,000,000; Cost of goods sold: $520,000; Operating expenses: $300,000.

Results — Operating income = $180,000.00; **Operating margin = 18 %**; Gross margin = 48 %.

## FAQ

**What is a good operating margin?**
15%+ is generally strong, but it varies by industry.

**Is operating margin the same as EBIT margin?**
Usually yes.

**Does operating margin include interest?**
No – interest is a financing cost.

**What formula does the Operating Margin Calculator use?**
Operating income = revenue − COGS − operating expenses.


## Sources

- [Corporate Finance Institute – financial ratios](https://corporatefinanceinstitute.com/)