Net Profit Margin CalculatorFree online financial calculator — instant results, no sign-up
Measure net margin after all entered operating costs, interest and taxes.
Estimates only, based on the inputs and assumptions shown. This is not financial, investment, tax, or legal advice. Prices, rates and local rules may change; crypto scenarios do not predict returns. Confirm important decisions with a qualified professional.
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About the Net Profit Margin Calculator
The Net Profit Margin Calculator measures how much revenue remains after subtracting your entered cost of goods sold, operating expenses, interest and income taxes. It reports both net profit in dollars and net profit margin as a percentage of revenue. With the default inputs, net profit is $28,000.00 and net profit margin is 14%.
- Revenue ($)
- Total revenue earned during the reporting period, in dollars, with a default of $200,000.
- Cost of goods sold ($)
- Direct costs attributable to the goods or services sold during the same period, in dollars, with a default of $100,000.
- Operating expenses ($)
- Operating costs for the same period that are not already included in cost of goods sold, interest or income taxes, in dollars, with a default of $60,000.
- Interest ($)
- Interest expense for the same reporting period, in dollars, with a default of $4,000.
- Income taxes ($)
- Income tax expense for the same reporting period, in dollars rather than a tax rate, with a default of $8,000.
Formula and method
P = R − C − O − I − T; M = (P / R) × 100, for R > 0. With the default inputs: P = $200,000 − $100,000 − $60,000 − $4,000 − $8,000 = $28,000.00; M = ($28,000 / $200,000) × 100 = 14%.
- RRevenue in dollars.
- CCost of goods sold in dollars.
- OOperating expenses in dollars.
- IInterest expense in dollars.
- TIncome tax expense in dollars.
- PNet profit in dollars after subtracting all entered costs.
- MNet profit margin expressed as a percentage of revenue.
Add cost of goods sold, operating expenses, interest and income taxes, then subtract that total from revenue to obtain net profit. Divide net profit by revenue and multiply by 100 to obtain net profit margin. For the default inputs, total entered costs are $172,000, leaving $28,000.00 of net profit and a 14% net profit margin.
Worked example
These are the calculator's starting values and the results it actually produces for them.
Inputs
- Revenue200000 $
- Cost of goods sold100000 $
- Operating expenses60000 $
- Interest4000 $
- Income taxes8000 $
Results
- Net profit$28,000.00
- Net profit margin14%
How to use the Net Profit Margin Calculator
- 1Choose one reporting period and enter its revenue in dollars; the default is $200,000.
- 2Enter cost of goods sold and operating expenses for that period, ensuring no expense is counted twice; the defaults are $100,000 and $60,000.
- 3Enter interest and income tax expenses in dollars for the same period; the defaults are $4,000 and $8,000.
- 4Review the net profit output, which is $28,000.00 with the default inputs.
- 5Review the net profit margin output, which is 14% with the default inputs, and compare it with comparable periods or businesses.
Reading your result
Net profit ($) shows the dollar amount remaining after all entered costs, interest and income taxes are subtracted from revenue. The default result of $28,000.00 is a profit; a negative result indicates a loss. Net profit margin (%) expresses that profit relative to revenue: the default 14% means 14 cents of net profit remain from each dollar of revenue. With positive revenue, a zero margin means the entered revenue exactly covers the entered costs, while a negative margin means those costs exceed revenue.
Limitations
All inputs must use the same reporting period, currency and accounting basis, and expense categories must not overlap. The calculator subtracts only the amounts entered; it does not determine tax liability, identify missing expenses or separately account for other income and unusual gains or losses. Net profit is not cash flow because cash timing, capital purchases, loan principal payments and noncash expenses can differ from accounting profit. Margin is undefined when revenue is zero, and negative revenue does not provide a conventional basis for margin interpretation. A favorable margin depends on the industry and business model; 14% is not a universal benchmark.
Common questions
How do the default inputs produce a 14% net profit margin?+
Subtract $100,000 of cost of goods sold, $60,000 of operating expenses, $4,000 of interest and $8,000 of income taxes from $200,000 of revenue. The remaining $28,000.00 divided by $200,000, then multiplied by 100, equals 14%.
How is this net profit margin different from gross profit margin?+
Gross profit margin subtracts only cost of goods sold from revenue before dividing by revenue. This calculator also subtracts operating expenses, interest and income taxes, so its output measures the margin remaining after all entered expense categories.
Should I enter my income tax rate or my income tax expense?+
Enter the income tax expense in dollars for the selected reporting period, not a percentage. The default $8,000 is subtracted directly from revenue along with the other costs; the calculator does not calculate taxes from taxable income.
What if my operating expenses already include interest or income taxes?+
Remove those amounts from the operating expenses input and enter them in the separate interest and income taxes fields. Otherwise, the calculator would subtract them twice and understate both net profit and net profit margin.
Does the calculator save my information?+
Calculations run in your browser. While signed in, inputs and results are automatically recorded in account history; saving a result creates a separate saved record.
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Results are estimates for informational purposes and are not financial, medical or legal advice.