Unit Economics
Net Profit Margin Calculator
The bottom line: what’s left of each sales dollar after everything — goods, overhead, and operating costs — is paid.
Inputs
- Revenue — Total sales for the period.
- Cost of goods sold — Direct cost of the products or services sold.
- Operating expenses — Rent, payroll, software, ads — running the business.
How to use this calculator
- Enter revenue, cost of goods sold, and all operating expenses for the period.
- The headline is net margin, which is what's left of each dollar after everything.
- Include your own pay in expenses; a profit that only exists because the owner works free isn't profit.
What each term means
- Net margin
- Net profit as a percentage of revenue: the true bottom line.
- Operating expenses
- Costs to run the business beyond goods: rent, payroll, ads, software.
- Gross vs net
- Gross margin is after goods only; net is after everything.
Educational disclaimer: Outputs are simplified educational estimates built from the numbers you enter — they are not financial, legal, tax, or investment advice, and real decisions deserve verified figures and qualified professionals.