What the tool does, how to run it, and what to expect from the result.
Calculate net profit margin from revenue, cost of goods sold, operating expenses and interest and taxes, alongside operating and gross margin. The math updates instantly and runs on your device, so it is fast, private, and available offline.
A quick way to understand who this helps, what it solves, and where it connects next.
Shoppers, students, freelancers, and anyone who needs a quick, private calculation.
Fast everyday math without a spreadsheet, app install, or sign-up.
Short answers for the questions people usually have before trying a utility like this.
Yes. It is completely free, with no sign-up, no watermark, and no usage limits.
No. Amounts are currency-neutral and use the same unit across all inputs, so it works in any country.
Net margin = net income ÷ revenue × 100, where net income is revenue minus every cost: COGS, operating expenses, interest and taxes. $35,000 net on $200,000 revenue is a 17.5% net margin.
It depends on the industry: grocery and retail often run 1-5%, while software can exceed 20%. Compare against businesses in the same sector rather than a single target.
Nearby tools from the catalog that fit the same job or workflow.
Gross margin and markup
Calculate gross profit and gross profit margin from revenue and cost of goods sold, with the matching markup on cost. Free, in your browser, no sign-up.
Calculate profit margin
Calculate profit, profit margin, and markup from cost and selling price. Free, in your browser, no sign-up.
Profit, margin and break-even
Calculate profit from unit cost, selling price, units sold and fixed costs, with profit margin, markup and the break-even quantity. Free, in your browser, no sign-up.
Calculate ROI
Calculate return on investment from the amount invested and returned. Free, in your browser, no sign-up.
Solve aspect ratios
Reduce aspect ratios, solve missing dimensions, and check common layout presets.
Find break-even ROAS
Calculate break-even ROAS, max ad spend, and max CAC from one order economics.
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Enter your numbers and the result updates live in your browser. Nothing is uploaded and no server is used.
Calculations run locally in your browser. Amounts are shown without a currency symbol so they work anywhere.