Calculate gross, operating & net margins — with waterfall chart and reverse price finder.
This free profit margin calculator gives you an instant visual breakdown of your gross, operating, and net profit margins — including a waterfall chart showing exactly where revenue is consumed at each expense layer. It also includes a reverse price finder: enter your unit cost and target margin to get the exact selling price you need. All calculations run locally in your browser — your financial data is never sent anywhere.
Profit margin shows how much of each dollar of revenue is kept as profit after expenses. Gross Margin = (Revenue − COGS) ÷ Revenue. Operating Margin = (Revenue − COGS − OpEx) ÷ Revenue. Net Margin = Net Profit ÷ Revenue — the final bottom line after all costs including taxes.
Gross margin only deducts the direct costs of producing your goods (COGS) — it shows production efficiency. Net margin deducts everything: COGS, operating expenses, interest, and taxes — showing what's truly left for shareholders. A business can have 70% gross margin but only 5% net margin if overhead is heavy (common in retail and services).
Margins vary widely by sector: Software/SaaS 70–80% gross, 20–30% net. Retail 25–35% gross, 2–5% net. Restaurants 60–70% gross, 3–9% net. Manufacturing 25–35% gross, 5–10% net. Consulting 60–75% gross, 15–25% net. Always compare against your specific industry peer group.
Use the Find Required Price tab. Enter your cost per unit and the gross margin % you want. The formula is: Price = Cost ÷ (1 − Margin%). For example, a $25 cost at 40% margin → Price = $25 ÷ 0.60 = $41.67.
A profit waterfall shows how revenue shrinks as each expense layer is deducted: Revenue → Gross Profit (after COGS) → Operating Profit (after OpEx) → Net Profit (after taxes & other costs). It quickly reveals which expense layer consumes the most profitability.