SizeAtlas
International size conversions, made simple.
Convert shoe, clothing and accessory sizes between countries and brands. Approximate reference charts and practical guides. Confirm your measurements with the current brand chart.
From
To
Approximate label equivalents, not a brand-specific fit guarantee. Use the current manufacturer chart for measured-foot guidance.
View full conversion table
| US | UK | EU |
|---|---|---|
| 6 | 5.5 | 39 |
| 6.5 | 6 | 39.5 |
| 7 | 6.5 | 40 |
| 7.5 | 7 | 40.5 |
| 8 | 7.5 | 41 |
| 8.5 | 8 | 42 |
| 9 | 8.5 | 42.5 |
| 9.5 | 9 | 43 |
| 10 | 9.5 | 44 |
| 10.5 | 10 | 44.5 |
| 11 | 10.5 | 45 |
| 11.5 | 11 | 45.5 |
| 12 | 11.5 | 46 |
| 13 | 12.5 | 47.5 |
| 14 | 13.5 | 48.5 |
Browse by category
Seven dedicated references. Each one a standalone chart with notes and FAQs.
Shoe sizes
US, UK, EU conversion for men, women and kids.
Clothing sizes
Shirts, jeans, jackets, dresses across regions.
Ring sizes
US, UK, EU, JP with diameter and circumference.
Bra sizes
Band and cup conversions across five systems.
Hat sizes
Head circumference to US, UK, EU and S–XXL.
Glove sizes
Hand circumference to numeric and S–XXL.
Children's sizes
Age, height, US, UK and EU sizing.
Brand fit notes
All brands →How major brands actually fit, beyond their published charts.
Journal
All entries →Using this reference
Size labels are not universal fit guarantees. Check the product’s measurements, width and current fit notes before ordering.
Sources
Source-linked journal guides distinguish official brand advice from approximate international conversions. Measurement standards do not impose one universal brand chart.
Accuracy
All conversions are approximate. Confirm with the brand's chart before purchase. SizeAtlas takes no affiliate revenue.