Gross profit versus net profit
Profit is not a single number. Gross profit is what is left after you subtract the cost of goods sold — the direct cost of making or buying the things you sell — from revenue. It measures how profitable your core product is before any overhead. Net profit takes the next step and subtracts operating expenses too: the salaries, rent, marketing, and other running costs that keep the business going. The gap between the two is everything it costs to operate the company beyond producing the product itself. To zero in on the share of each sale that survives COGS, see theprofit margin calculator, and to isolate how much each unit contributes after its variable costs, thecontribution margin calculator.
Worked example
Take a business with $500,000 in revenue for the period, $300,000 in cost of goods sold, and $120,000 in operating expenses:
| Step | Amount |
|---|---|
| Revenuetotal sales over the period | $500,000 |
| − Cost of goods soldthe direct cost of what was sold | $300,000 |
| = Gross profita gross margin of 40% of revenue | $200,000 |
| − Operating expensesoverhead, salaries, rent, marketing | $120,000 |
| = Net profita net margin of 16% — the share of each sales dollar the business keeps | $80,000 |
Computed with this calculator's default settings — open the tool above and you'll see the same numbers, then swap in your own figures.
Why margins beat raw dollars
A dollar figure on its own says little about how well a business is run. Gross margin is gross profit as a percent of revenue, and net margin is net profit as a percent of revenue. Expressing profit per dollar of sales is what makes it comparable: a corner shop and a global retailer can be judged on the same scale, and you can track whether this quarter is more efficient than the last regardless of how sales volumes have moved. A margin that climbs while revenue holds steady is a clear sign of improving efficiency, which raw profit dollars can easily hide.
The profit hierarchy: gross to operating to net
Read an income statement from the top down and profit reveals itself in layers. Start with revenue, subtract cost of goods sold to reach gross profit, subtract operating expenses to reach operating profit, then take away interest and tax to land on net profit — the bottom line. Each level answers a different question, from product profitability to what the owners ultimately keep. This calculator walks the gross-to-net path; how far down the hierarchy your result sits depends on which costs you load into the expense field. If your business turns on covering fixed costs first, pair this with thebreak-even point calculatorto find the sales level where profit begins.
Frequently asked questions
What is the difference between gross profit and net profit?
Gross profit is what remains after you subtract the cost of goods sold — the direct cost of producing what you sell — from revenue. Net profit goes further and also subtracts operating expenses such as salaries, rent, and marketing. Gross profit tells you how profitable your core product is before overhead, while net profit tells you what the business actually keeps once all the running costs are paid.
How are gross margin and net margin calculated?
Gross margin is gross profit divided by revenue, expressed as a percent; net margin is net profit divided by revenue, also as a percent. If you earn 500,000 in revenue and 200,000 in gross profit, your gross margin is 40 percent. The margins translate raw dollar profits into a per-dollar-of-sales figure, which is why they are the standard way to talk about how profitable a business is.
Why do margins matter more than the dollar amount of profit?
A large company and a small one can earn wildly different dollar profits and still be equally efficient, so raw profit dollars are hard to compare. Margins put everything on the same scale — cents of profit per dollar of sales — so you can compare a startup with a multinational, or this year with last year, on equal terms. A rising margin signals improving efficiency even if total profit is flat.
What is the profit hierarchy from gross to net?
Profit is usually read top to bottom: start with revenue, subtract cost of goods sold to get gross profit, subtract operating expenses to get operating profit, then subtract interest and tax to reach net profit. Each step strips away another layer of cost. This calculator covers the gross-to-net path; whether your result is operating profit or true net profit depends on whether you have included interest and tax in your expenses.
Is the result before or after tax and interest?
It depends on what you enter as operating expenses. If you include only operating costs, the net figure is closer to operating profit, which is before interest and tax. If you fold interest and tax into your expenses, the result approaches true net profit, the bottom line. The calculator does the arithmetic; you decide which costs belong in the expense field to match the level of profit you want to measure.
Disclaimer: This calculator is foreducation and illustration only. It applies a simple revenue-minus-costs model and does not account for the full detail of accounting standards, depreciation, or tax rules. The figures it produces are not financial statements and are not accounting, tax, or investment advice.