
Profit Margin Calculator
Worked example (the default inputs above): €10,000 revenue, €6,000 product costs, €1,500 expenses → gross profit €4,000 (40.0% gross margin), net profit €2,500 (25.0% net margin), markup on cost 66.7%.
Key fact: Margin and markup are not the same number: a 40% gross margin equals a 66.7% markup on cost — mixing them up is one of the most common pricing mistakes.
What this calculator does
This calculator turns revenue and costs into the three numbers that describe a business's profitability: gross margin (after direct product costs), net margin (after all operating expenses), and markup on cost (how much you add to cost to set a price).
How to use it
- Enter your revenue for the period.
- Enter your cost of goods sold — what the products or direct service delivery cost you.
- Enter your operating expenses — rent, salaries, software, marketing — then read all three margins instantly.
→ E-commerce profit calculator
The formula
Gross profit = revenue − cost of goods sold. Gross margin = gross profit ÷ revenue. Net profit = gross profit − operating expenses. Net margin = net profit ÷ revenue. Markup = gross profit ÷ cost of goods sold. Example: (€10,000 − €6,000) ÷ €10,000 = 40.0% gross margin; (€4,000 − €1,500) ÷ €10,000 = 25.0% net margin; €4,000 ÷ €6,000 = 66.7% markup.
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Worked example with real numbers
A ceramics studio in Barcelona sells €10,000 of pottery in a month. Clay, glazes, firing and packaging cost €6,000, leaving €4,000 of gross profit — a 40.0% gross margin. Rent, the kiln's electricity share, market fees and software come to €1,500, leaving €2,500 net profit — a 25.0% net margin. The markup on cost is €4,000 ÷ €6,000 = 66.7%: for every €1 of product cost, the studio adds about €0.67. If material costs rose 10% to €6,600 with no price change, net margin would fall to 19.0% — which is why small cost rises deserve a price review, not silent absorption.
→ E-commerce profit calculator
Reference table
Margin versus markup — the same business, different lens (illustrative figures):
| Gross margin | Markup on cost | What it means |
|---|---|---|
| 20% | 25.0% | €1 of cost sells for €1.25 |
| 33% | 50.0% | €1 of cost sells for €1.50 |
| 40% | 66.7% | €1 of cost sells for €1.67 |
| 50% | 100.0% | €1 of cost sells for €2.00 |
Sources and disclaimer
Method: standard gross-margin, net-margin and markup formulas. Use revenue, costs and expenses from the same period and on the same VAT basis (all net or all gross). A 'good' margin varies enormously by sector — food retail runs thin, software runs high — so compare with your own sector, not with a universal benchmark.
Estimate only — not tax or financial advice. This tool estimates only. It is not tax, legal or financial advice and does not determine your actual tax, loan or lender decision — check your national tax authority, bank or a qualified adviser for your situation. Always verify current figures with the official source or a qualified adviser before making decisions.
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