Free converters for the units people in the UK still mix every day. Switch between kilograms and stone, cups and grams, gas marks and Celsius, and UK, EU and US clothing, shoe and ring sizes, with tables you can check at a glance.
In This Guide
Quick picks
Not sure where to start? These are the tools people use most in this category.
| I want to | Use this tool |
|---|---|
| Convert kg to stone | Kg to Stone Converter |
| Cups to grams for baking | Cups to Grams Converter |
| Gas mark to °C | Gas Mark Converter |
| UK to EU shoe size | UK to EU Shoe Size |
Cooking and kitchen
2Recipes from any country in UK units.
Weight, length and measurement
3Metric and imperial in both directions.
Clothing and ring sizes
3Shop UK, EU and US sizes with confidence.
Numbers
1Number systems and notation.
Frequently asked questions
How many kilograms are in a stone?
One stone is 14 pounds, which is 6.35 kilograms.
Is a UK cup the same as a US cup?
No. A metric cup is 250 ml and a US cup is about 237 ml, which is why the cups to grams converter asks which cup you mean.
Why do clothing sizes differ between countries?
Each country uses its own sizing system, and brands vary too. Use the charts as a starting point and check the brand size guide.
Are the conversions exact?
Unit conversions use exact factors. Size charts are typical equivalents, so fit can vary by brand.
How we build and check these tools
Every tool is built by hand by the Tools Veria Editorial Team, tested with worked examples and checked against official guidance. Read our editorial policy to see how we review figures when rules change. Key sources for this category:
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Browse all tools or read our practical guides.