Updated June 2026
International size conversions, made simple.
Convert shoe, clothing and accessory sizes between countries and brands. Clear charts, calibrated against ISO standards and brand-published data.
From
To
View full conversion table
| US | UK | EU | CM |
|---|---|---|---|
| 6 | 5.5 | 39 | 24.0 |
| 6.5 | 6 | 39.5 | 24.5 |
| 7 | 6.5 | 40 | 25.0 |
| 7.5 | 7 | 40.5 | 25.4 |
| 8 | 7.5 | 41 | 26.0 |
| 8.5 | 8 | 42 | 26.5 |
| 9 | 8.5 | 42.5 | 27.0 |
| 9.5 | 9 | 43 | 27.5 |
| 10 | 9.5 | 44 | 28.0 |
| 10.5 | 10 | 44.5 | 28.5 |
| 11 | 10.5 | 45 | 29.0 |
| 11.5 | 11 | 45.5 | 29.5 |
| 12 | 11.5 | 46 | 30.0 |
| 13 | 12.5 | 47.5 | 31.0 |
| 14 | 13.5 | 48.5 | 32.0 |
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 →Last updated
17 June 2026 · Reviewed quarterly against published brand and ISO charts.
Sources
ISO 9407 · EN 13402 · ISO 8559. Public charts from Nike, Adidas, ASICS, Zara, H&M, Uniqlo, Levi's.
Accuracy
All conversions are approximate. Confirm with the brand's chart before purchase. SizeAtlas takes no affiliate revenue.