Net Profit Margin Calculator
Calculate net profit margin from revenue and net income, or build net income from an expense breakdown.
Calculator workspace
Use one consistent reporting period. Choose an expense breakdown or enter net income directly.
How This Net Profit Margin Calculator Works
Calculate net profit margin from revenue and net income, or build net income from an expense breakdown. The rebuilt page uses calculator-specific logic rather than the legacy page script. Inputs are validated before calculation, and supporting figures are shown with the headline result so the arithmetic is easier to check.
Core method: Net profit = revenue − expenses; margin % = net profit ÷ revenue × 100.
How to Use It
- Choose Revenue + expense breakdown or Revenue + net income.
- Enter revenue and all values from the same monthly, quarterly, annual or custom reporting period.
- Select Calculate net margin. The result panel shows net margin, net profit or loss, expense ratio and the exact values used in the formula.
- Use Copy Result to keep the calculation for a report or comparison.
Worked Example
If revenue is 100,000 and total expenses are 82,000, net profit is 18,000. Net profit margin = 18,000 ÷ 100,000 × 100 = 18%.
Common Uses
- Review profitability after all expenses
- Compare monthly, quarterly or annual performance
- Check whether cost changes are improving or reducing margin
- Support budgeting, pricing and management reporting
Common Questions About Net Profit Margin
What is net profit margin?
Net profit margin shows how much net income remains from each unit of revenue after the expenses included in net income. It is expressed as a percentage of revenue.
What is the difference between gross margin and net margin?
Gross margin considers revenue and cost of goods sold. Net margin uses net income after operating expenses, interest, taxes and other applicable income or expenses, so it is a broader measure of bottom-line profitability.
Can net profit margin be negative?
Yes. A negative margin means net income is negative for the reporting period. The calculator supports negative net income in direct mode and can also produce a loss from the expense breakdown.
Important Limitations
Net profit margin is only as reliable as the accounting figures entered. Use revenue and net income from the same reporting period and a consistent accounting basis. Industry margins vary widely by sector, company maturity, geography and accounting policy, so this calculator does not label a fixed percentage as universally “good” or “bad.”
Frequently Asked Questions
Does the calculator upload my inputs?
No. The calculation runs in the browser and does not require an account.
Can I calculate again with different values?
Yes. Change any input and calculate again to compare scenarios.
Why are there no universal industry benchmark labels?
A margin that is strong in one industry can be weak in another. Compare the result with your own historical periods and appropriate sector data rather than relying on a single universal threshold.