Size Comparison Chart: US, UK, EU, Alpha & Measurements
Compare US, UK, EU and international clothing size systems with alpha labels and body measurement ranges.
Women's international size comparison
| US | UK | EU | IT | Alpha | Approx bust |
|---|---|---|---|---|---|
| US 0 | UK 4 | EU 32 | IT 36 | XXS | 30-31 in / 76-79 cm |
| US 2 | UK 6 | EU 34 | IT 38 | XS | 31-32 in / 79-81 cm |
| US 4 | UK 8 | EU 36 | IT 40 | S | 33-34 in / 84-86 cm |
| US 6 | UK 10 | EU 38 | IT 42 | S-M | 34-35 in / 86-89 cm |
| US 8 | UK 12 | EU 40 | IT 44 | M | 35-36 in / 89-91 cm |
| US 10 | UK 14 | EU 42 | IT 46 | M-L | 36-38 in / 91-97 cm |
| US 12 | UK 16 | EU 44 | IT 48 | L | 38-40 in / 97-102 cm |
| US 14 | UK 18 | EU 46 | IT 50 | L-XL | 40-42 in / 102-107 cm |
| US 16 | UK 20 | EU 48 | IT 52 | XL | 42-44 in / 107-112 cm |
This table is a general comparison, not a guarantee of brand fit.
Men's international size comparison
| Alpha | US | UK | EU | Chest | Waist | Neck |
|---|---|---|---|---|---|---|
| XS | 34 | 34 | 44 | 33-35 in / 84-89 cm | 27-29 in / 69-74 cm | 13.5-14 in / 34-36 cm |
| S | 36-38 | 36-38 | 46-48 | 35-38 in / 89-97 cm | 29-31 in / 74-79 cm | 14-14.5 in / 36-37 cm |
| M | 40 | 40 | 50 | 38-41 in / 97-104 cm | 32-34 in / 81-86 cm | 15-15.5 in / 38-39 cm |
| L | 42-44 | 42-44 | 52-54 | 42-45 in / 107-114 cm | 35-38 in / 89-97 cm | 16-16.5 in / 41-42 cm |
| XL | 46-48 | 46-48 | 56-58 | 46-49 in / 117-124 cm | 39-42 in / 99-107 cm | 17-17.5 in / 43-44 cm |
| XXL | 50-52 | 50-52 | 60-62 | 50-53 in / 127-135 cm | 43-46 in / 109-117 cm | 18-18.5 in / 46-47 cm |
Men's numeric jacket sizes usually track chest measurements, while alpha sizing is broader.
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Regional conversion hubs
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Converter-led pages
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How to measure before choosing a size
Related size charts
More in Conversions
UK Size Chart
Searchers are usually shopping across regions and need a direct UK-to-US/EU answer without reading a long sizing essay.
US to UK Size Chart
This query is conversion-first: users usually have one size label and want the UK equivalent immediately.
EU to US Size Chart
EU-to-US searchers need to decode European numeric labels and often worry that one EU number maps to multiple possible US sizes.
International Size Chart
International sizing users want context: which country system they are seeing, how it converts, and when measurement beats conversion.
FAQ
Why do size comparison charts vary?
Countries, brands, garment categories, and fit models use different grading rules, so conversion charts are approximate.
Are alpha sizes the same worldwide?
No. Small, medium, and large can vary by country, brand, garment type, and intended fit.
What is the most reliable way to compare sizes?
Use body measurements in inches or centimeters first, then use numeric labels as a shopping shortcut.