Unit Converters
Clothing Size Converter
Convert clothing sizes between US, UK, EU, and Australian sizing for men's and women's clothes.
12
UK
40
EU
12
AU
S
Letter
Sizing is approximate and varies significantly by brand.
How the Clothing Size Converter works
Choose men's or women's sizing and select a US size — the equivalent UK, EU, Australian, and letter sizes (S/M/L) appear instantly.
Frequently asked questions
Why do clothing sizes vary so much by brand?
There's no single global standard for clothing sizing, so brands each set their own measurements — this converter shows the commonly published approximate equivalents.
Does this work for men's and women's clothing?
Yes — toggle between men's and women's sizing to see the right chart for each.
Guides that cover this
Why Unit Conversion Still Trips Everyone Up (and How to Get It Right)A guide to the everyday unit conversions — length, weight, temperature, shoe and clothing sizes — that cause the most mistakes.Converting Clothing Sizes Across US, UK, EU, and AUHow the four major clothing size scales relate to each other, and why the offsets differ for men's and women's clothing.Why an EU Size Label Fit Differently Than ExpectedWhy EU clothing sizes, based more directly on body measurements, can fit differently than a converted US or UK size suggests.Numbered Sizes vs. Letter Sizes (S/M/L): Which Is More ReliableWhether numbered clothing sizes or letter sizes (S/M/L) give a more consistent, reliable fit across different brands.How to Use the Clothing Size ConverterA quick walkthrough of converting clothing sizes across US, UK, EU, and AU scales.Clothing Size Converter: How It Works and How to Use ItA quick guide to the clothing size converter — what it calculates, how the math works, and tips for getting an accurate result.