ASOS Clothing Size Guide & Conversion
Quick answer:
ASOS size chart and conversion: clothing sizing for UK, fit tips, and how to convert ASOS sizes to US, UK, and EU.
See also: CM to US converter · Shoe size converter · Measurement standards
ASOS size chart and conversion: clothing sizing for UK, fit tips, and how to convert ASOS sizes to US, UK, and EU. Use the sections below to understand ASOS sizing, fit tendencies, and how to convert to your region. For exact conversions, use our generic converters linked at the bottom.
Brand sizing philosophy
ASOS is UK-based; sizes are in UK with US, EU, and AU equivalents. Multiple brands and own-label.
Known inconsistencies
Fit varies by brand and product. Own-brand vs. third-party sizing differs.
Fit tendencies
UK sizing; often runs true to size. Check each product's size guide.
Conversion comparison
Approximate clothing size equivalents (use our converters for exact conversions):
| US | UK | EU |
|---|---|---|
| S | S | 46 |
| M | M | 48 |
| L | L | 50 |
| XL | XL | 52 |
Fit and sizing explained
Fit Problems Explained
Step-by-step guide to measuring foot length in centimeters for accurate shoe size conversion. Avoid common shoe sizing mistakes when converting between regions. Fit tips and conversion best practices.
How to Measure Your Feet in CM · Common Shoe Sizing Mistakes
Why Sizes Vary
Understand how shoe sizing systems work across US, UK, EU, Japan, and CM. Educational guide with conversion references. Avoid common shoe sizing mistakes when converting between regions. Fit tips and conversion best practices.
Brand Differences
Brands use different lasts and fit models. Nike often runs small; Adidas and Puma can differ by style. Always check the brand's size chart before ordering.
Regional Differences
Why European and US shoe sizes use different scales. Regional differences and conversion explained. How Japanese shoe sizing works and how to convert to US, EU, and UK. Japan size chart explained. How UK shoe sizes differ from US and EU. Conversion and regional comparison guide.
Why EU and US Shoe Sizes Differ · How Japanese Shoe Sizes Work · How UK Shoe Sizes Differ From US and EU
Generic converters
Convert any size between regions using our tools:
User fit warnings
Always check the brand's official size chart for the specific product. Sizing can change by season and style. When between sizes, consider sizing up for comfort or ordering two sizes and returning one. Read recent customer reviews for fit notes.
ASOS sizing runs small — check…
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Related Fit Problems
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Same Brand — Different Region
Related links (same brand, hub, tools, guides)
Common questions
How should I use this converter?
Pick your region and size, then read the equivalents. When in doubt, measure in centimeters and compare to the brand chart.
Why do sizes differ between countries?
Each region uses its own scale; mapping through foot length (cm) reduces error.
More on ASOS Clothing Size Guide & Conversion
See linked guides on this site for measurement tips and regional differences.
Data sources
- ISO and regional footwear sizing references (length-based mapping)
- Published brand size charts (e.g. Nike, Adidas) for cross-checks—not endorsements
- International measurement and apparel sizing studies (public summaries)
Why Sizes May Vary
Shoe and clothing sizes can vary between brands due to manufacturing differences, materials, and regional sizing standards.
Frequently Asked Questions
What is EU 42 in US shoe size?
EU 42 typically converts to US men's size 9 and US women's size 10.5, depending on brand and width. Use any converter on this page when available.
Are EU and US shoe sizes the same?
No. The EU sizing system and US shoe sizing scale use different scales. International shoe size conversion is most reliable when you anchor to foot length in cm.
See also
Shoe Size Converter · Knowledge hub · Guides · Measurement standards