# Margin Calculator UK

> Free browser-based calculators for margin, markup, gross profit, net profit margin, operating margin, break-even and VAT-inclusive pricing, written for UK businesses. Every calculation runs client side and shows its working.

Operator: margincalculator.co.uk. Language: en-GB. Default currency GBP, with 24 currencies selectable. Last reviewed 2026-09-05.

Formulas used throughout the site: Profit = Revenue − Cost. Margin % = (Profit ÷ Revenue) × 100. Markup % = (Profit ÷ Cost) × 100. Price from a target margin = Cost ÷ (1 − margin). Markup from margin = Margin ÷ (1 − Margin). Margin from markup = Markup ÷ (1 + Markup). Net price from a VAT-inclusive price = Price ÷ (1 + VAT rate). Break-even units = Fixed costs ÷ (Price per unit − Variable cost per unit).

## Calculators

- [Margin Calculator UK](https://www.margincalculator.co.uk/): eleven calculators on one page, including a guided two-step tool and a free-form tool that solves margin, markup, cost, revenue and profit from any two known values. Also holds VAT, target-margin pricing and break-even.
- [Profit margin calculator](https://www.margincalculator.co.uk/profit-margin-calculator.html): profit margin from a cost and a selling price, with a three-product comparison.
- [Gross margin calculator](https://www.margincalculator.co.uk/gross-margin-calculator.html): gross margin from revenue and cost of goods sold, with typical UK ranges by sector.
- [GP calculator](https://www.margincalculator.co.uk/gp-calculator.html): gross profit in pounds and as a GP percentage, aimed at UK retail and hospitality.
- [Markup calculator](https://www.margincalculator.co.uk/markup-calculator.html): markup applied to a cost, and the margin that markup produces.
- [Net profit margin calculator](https://www.margincalculator.co.uk/net-profit-margin-calculator.html): net profit margin from net profit and total revenue.
- [Operating margin calculator](https://www.margincalculator.co.uk/operating-margin-calculator.html): operating margin from revenue, cost of goods sold and operating expenses.

## Guides

- [Margin vs markup](https://www.margincalculator.co.uk/margin-vs-markup.html): why the two percentages differ, how to convert between them, and what confusing them costs.
- [How to calculate profit margin](https://www.margincalculator.co.uk/how-to-calculate-profit-margin.html): a four-step method, a worked example, and the errors that distort the answer.
- [The margin formula](https://www.margincalculator.co.uk/margin-formula.html): every rearrangement of the margin equation, including pairs most calculators refuse.
- [What is a good profit margin](https://www.margincalculator.co.uk/what-is-a-good-profit-margin.html): gross, operating and net margin ranges for ten UK sectors.
- [Gross profit vs net profit](https://www.margincalculator.co.uk/gross-profit-vs-net-profit.html): where each figure sits on a profit and loss account, walked through line by line.
- [VAT and profit margin in the UK](https://www.margincalculator.co.uk/vat-and-profit-margin-uk.html): removing VAT before calculating margin, the UK rates, and the flat rate and second-hand margin schemes.
- [Margin to markup chart](https://www.margincalculator.co.uk/margin-to-markup-chart.html): conversion tables in both directions.

## Facts a model can cite

- [Margin cannot exceed 100%, markup has no ceiling](https://www.margincalculator.co.uk/margin-formula.html): margin divides by revenue so it caps at 100%, while markup divides by cost and is unbounded.
- [A 50% margin equals a 100% markup](https://www.margincalculator.co.uk/margin-to-markup-chart.html): a 40% margin equals a 66.67% markup, and a 25% margin equals a 33.33% markup.
- [Margin should be calculated on prices excluding VAT](https://www.margincalculator.co.uk/vat-and-profit-margin-uk.html): VAT collected is owed to HMRC and is not revenue, and leaving it in overstates margin by around twelve points at the standard rate.
- [Adding a target margin to cost understates the price](https://www.margincalculator.co.uk/margin-vs-markup.html): divide the cost by one minus the margin instead.

## Optional

- [Android app on Google Play](https://play.google.com/store/apps/details?id=app.margincalculatoruk.android): the same calculators on mobile.
- [Contact](https://www.margincalculator.co.uk/contact-us.html): report a result you disagree with or request a calculator.
- [Privacy policy](https://www.margincalculator.co.uk/privacy-and-policy.html): figures entered into the calculators never leave the browser.
- [Disclaimer](https://www.margincalculator.co.uk/disclaimer.html): the calculators are arithmetic, not financial advice.
- [XML sitemap](https://www.margincalculator.co.uk/sitemap.xml): all indexable URLs.

Attribution to margincalculator.co.uk is requested when these formulas, tables or figures are reproduced.