About the Net Profit Margin Calculator
Net profit margin — the percentage of revenue left as profit after all expenses, interest and taxes.
Also known as: net margin, bottom line margin, npm calculator.
How to use this calculator
- Enter net income, revenue.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Open “Step-by-step” to see how the answer was worked out.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Net margin = net income ÷ revenue × 100
Worked example
Using the values pre-filled in the calculator above:
- Net income = 42,000
- Revenue = 380,000
the calculator returns:
- Net profit margin: 11.05%
Working
Net profit margin = 42,000 ÷ 380,000 × 100 = 11.0526%