What this calculator measures
Profit margin measures how much of each unit of revenue remains after a defined set of costs. Gross margin subtracts direct cost of goods or services. Operating margin also subtracts the operating expenses entered in the model. Clear cost classification is essential because moving a cost between categories changes the intermediate margins even when final profit is unchanged.
Use one consistent accounting period and avoid mixing cash collected with revenue recognized under a different period. This is a planning calculation, not a replacement for financial statements or tax accounting.
How to use the Profit Margin Calculator
- Enter revenue for one consistent period.
- Enter direct cost and operating expenses for that same period.
- Review gross profit, gross margin, operating profit and operating margin.
Gross margin subtracts direct costs. Operating margin subtracts direct and operating costs. Both are expressed as a share of revenue.
Worked example
With $100,000 revenue, $40,000 direct costs and $35,000 operating expenses, gross margin is 60% and operating margin is 25%.
Assumptions and limitations
- The result depends on consistent classification of direct and operating costs.
- Taxes, interest and exceptional items are excluded unless entered as operating expense.
- A high percentage does not show cash timing or working-capital requirements.
- Use audited figures for formal reporting decisions.