# Margin Calculator for Online Stores | RevenueWorks > Free margin calculator for online stores: profit and margin per product after cost of goods, shipping, fees, ads and returns. With minimum price and monthly profit. Source: https://revenueworks.ai/tools/marge-rechner Language: en --- Free tool # Margin calculator: what is really left per sale? Enter price, cost of goods, shipping, fees, ads and returns. You see profit, margin and the minimum price. No sign-up, nothing is saved. **In short:** Margin in percent = profit ÷ net selling price × 100. What matters is the real profit: after cost of goods, shipping, payment fees, ads and returns. The calculator shows it per sale and per month. ## Your product Selling price is Selling price (€) VAT % Purchase price (€) Shipping costs you bear (€) ## Fees, advertising, returns Payment fee (%) % Fixed payment fee (€ per payment) Ad cost per sale (€) Ad budget divided by sales. Return rate % Cost per return (€) Return shipping and handling. The goods are resold. Sales per month ## Your result Profit per sale €10.80 After all costs, before tax. Profit margin 21.4% Profit divided by net revenue. Net selling price€50.34 Purchase price€18.00 Shipping€4.50 Payment fee€1.21 Advertising€12.00 Returns (pro rata)€3.83 Markup on purchase price180% Minimum net price for zero profit€38.08 Profit per month at 100 sales€1,080 Markup = the percentage you add to the purchase price. Margin = the percentage of revenue that remains as profit. Nothing is saved or sent. ## Request a written review Embed this calculator on your website Free, no sign-up. Please keep the source link. The calculator runs in our frame, no inputs are passed on to you. ## Margin works? Then your store needs more visitors. Once you know what is left per sale, you can use advertising deliberately. Next, calculate your break-even ROAS. [To the ROAS calculator](https://revenueworks.ai/tools/roas-rechner) [Write on WhatsApp](https://wa.me/35679286342?text=Hi%20David!%20I%20used%20the%20margin%20calculator%20and%20want%20to%20make%20my%20store%20more%20profitable%3A%20) ## How to calculate margin: formula, example and common mistakes **Margin** shows what percentage of net revenue remains as profit. **Markup** shows what percentage you add to the purchase price. The two are often confused, but give different percentages for the same numbers. ### The formulas - **Net** = gross ÷ (1 + VAT rate). - **Profit** = net − cost of goods − shipping − payment fee − advertising − return loss. - **Margin** = profit ÷ net × 100. - **Markup** = (net − cost of goods) ÷ cost of goods × 100. ### Example Gross €59.90 (net €50.34), cost of goods €18, shipping €4.50, payment fee 1.9% plus €0.25, advertising €12, 10% returns at €6 per return. The markup on cost looks huge, the real profit per sale is much smaller. That is exactly what the calculator shows. ### Common mistakes - Comparing the gross price with net costs. - Leaving out advertising, shipping and returns. - Confusing margin and markup. - Treating profit before tax as profit after fixed costs. The calculator runs entirely in your browser. Your inputs are not saved and not sent anywhere. It does not replace tax or legal advice. ## Frequently asked questions How do I calculate margin? Margin in percent = profit ÷ net selling price × 100. Example: net price €50, profit €10 gives a 20% margin. What is the difference between margin and markup? Margin relates to the selling price, markup to the purchase price. Purchase €20, net sale €30: markup 50%, margin about 33%. How do I work out the selling price from the purchase price? Use the calculator and check the minimum price for zero profit. Only above it do you earn money. Then decide how much profit per sale you want. How do I convert gross to net? Net = gross ÷ (1 + VAT rate). At 19% VAT: €59.90 gross is €50.34 net. The calculator does this automatically when you choose “Gross”. Which costs belong in the calculation? Purchase price, shipping, payment fees, advertising per sale and returns. If you only deduct the purchase price, you calculate yourself richer than you are. Is this profit after tax? No. The calculator shows profit before tax and before fixed costs such as rent, subscriptions and salaries. ## More free calculators [Website Check: SEO and AI Visibility](https://revenueworks.ai/website-check)[Website Cost Calculator](https://revenueworks.ai/tools/website-kosten-rechner)[ROAS and Break-even Calculator](https://revenueworks.ai/tools/roas-rechner)[Shopify Fees Calculator](https://revenueworks.ai/tools/shopify-gebuehren-rechner)[Shopify Cost Calculator](https://revenueworks.ai/tools/shopify-cost-calculator)[CAC and LTV Calculator](https://revenueworks.ai/tools/cac-ltv-rechner)[Returns Cost Calculator](https://revenueworks.ai/tools/retouren-rechner)[Gross-Net VAT Calculator](https://revenueworks.ai/tools/brutto-netto-rechner)[Affiliate Commission Calculator](https://revenueworks.ai/tools/affiliate-provisions-rechner)[Workcation Cost Calculator Gozo and Malta](https://revenueworks.ai/tools/workcation-kosten-rechner) [View all tools and calculators](https://revenueworks.ai/tools) · [How we calculate](https://revenueworks.ai/methodology) - [Home](https://revenueworks.ai/) - [Website Design](https://revenueworks.ai/website-design) - [Website for Digital Nomads](https://revenueworks.ai/website-design-digital-nomads) - [Website Design Malta](https://revenueworks.ai/website-design-malta) - [Website Upgrades](https://revenueworks.ai/website-upgrade) - [Shopify Launch Bundle](https://revenueworks.ai/devforce-one/shopify-launch-bundle) - [Shopify Cost Calculator](https://revenueworks.ai/tools/shopify-cost-calculator) - [About RevenueWorks](https://revenueworks.ai/about-revenueworks) - [Methodology](https://revenueworks.ai/methodology) - [Website Check](https://revenueworks.ai/website-check) - [Partner Programme](https://revenueworks.ai/partner) - [Guides](https://revenueworks.ai/guides) - [Glossary](https://revenueworks.ai/glossary) - [Price Index](https://revenueworks.ai/price-index) - [Project Facts](https://revenueworks.ai/launch-benchmarks) - [CAC and LTV Calculator](https://revenueworks.ai/tools/cac-ltv-rechner) - [Returns Cost Calculator](https://revenueworks.ai/tools/retouren-rechner) - [Gross-Net VAT Calculator](https://revenueworks.ai/tools/brutto-netto-rechner) - [Affiliate Commission Calculator](https://revenueworks.ai/tools/affiliate-provisions-rechner) - [Workcation Cost Calculator](https://revenueworks.ai/tools/workcation-kosten-rechner) - [Tools and Calculators](https://revenueworks.ai/tools) - [Website Cost Calculator](https://revenueworks.ai/tools/website-kosten-rechner) - [ROAS and Break-even Calculator](https://revenueworks.ai/tools/roas-rechner) - [Shopify Fees Calculator](https://revenueworks.ai/tools/shopify-gebuehren-rechner) - [Margin and Profit Calculator](https://revenueworks.ai/tools/marge-rechner) - [Projects](https://revenueworks.ai/projects) - [Industries](https://revenueworks.ai/industries) - [AI Sales Agent](https://revenueworks.ai/sales-agent) - [AI Support Agent](https://revenueworks.ai/support-agent) - [AI Ops Agent](https://revenueworks.ai/ops-agent) - [AI Marketing Agent](https://revenueworks.ai/marketing-agent) - [Scaling](https://revenueworks.ai/scaling) - [Case studies](https://revenueworks.ai/case-studies) - [Affiliate automation](https://revenueworks.ai/affiliate) - [AffForce ONE](https://revenueworks.ai/affforce-one) - [Catalog](https://revenueworks.ai/catalog) - [Coworking Gozo](https://revenueworks.ai/workspace-gozo) - [Advertorial Playbook](https://revenueworks.ai/advertorial-playbook) - [Coupon Killer](https://revenueworks.ai/coupon-killer) - [Tracking](https://revenueworks.ai/tracking) - [Product data feed](https://revenueworks.ai/produktdatenfeed) - [Feed specification](https://revenueworks.ai/feed-spezifikation) - [Infrastructure as a Service](https://revenueworks.ai/infrastructure-as-a-service) - [DEVForce ONE](https://revenueworks.ai/devforce-one) - [Website Configurator](https://revenueworks.ai/website-konfigurator) - [Privacy](https://revenueworks.ai/privacy) - [Terms](https://revenueworks.ai/terms) - [Legal notice](https://revenueworks.ai/imprint)