Clothing Size Converter
Convert clothing sizes between US, UK and EU systems for women and men to shop international brands with confidence.
Last reviewed by the Radiatus Cloud team
Convert clothing sizes between US, UK and EU systems.
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Convert clothing sizes across countries
Clothing sizes differ confusingly between countries: a size that is one number in the US is another in the UK and a completely different scale in the EU. This converter translates womens and mens clothing sizes between the US, UK and EU systems, and shows the equivalent letter size from extra small to extra large. Choose whether you are converting womens or mens sizes, pick the system you already know, enter the size, and see all the equivalents.
The conversions are based on standard size charts, so they give a reliable starting point for international shopping.
Shopping international brands
Online shopping makes it easy to buy from brands in other countries, but ordering the wrong size leads to returns and frustration. Knowing your size across systems helps you choose correctly the first time. Bear in mind that sizing is not perfectly standardised: different brands, and especially different garment types, can vary, so always check a specific brand size chart when available.
The letter size gives a quick general guide when numeric sizes are not shown. All conversion happens locally in your browser.
Notes on this tool
Because the clothing size converter runs entirely in your browser, you can change the inputs and see the result update immediately, with nothing uploaded and no sign-up required. Everything is computed locally, so your information stays private on your own device, and you can use the tool as often as you like for free.
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Frequently Asked Questions
How accurate are clothing size conversions?
They are based on standard charts and give a reliable starting point, but brands vary, so check a specific brand size guide when possible.
Does it cover both women and men?
Yes. Choose the gender, and the converter uses the appropriate size chart for womens or mens clothing.
Why do sizes differ so much between countries?
Each region developed its own sizing system, so the same body measurement is labelled with different numbers in the US, UK and EU.
What is the letter size?
It is the general small, medium or large label, useful as a quick guide when a garment is not sold in numeric sizes.
Privacy & Security
Everything runs in your browser; nothing is uploaded.
How to Use
Choose gender and the size system you know, enter the size, and convert.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.
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