Enter your Adidas US size to see UK, EU and foot length.
Adidas uses fractional EU sizes like 42⅔ and 43⅓. These are printed on the shoe box and tongue label — they are unique to Adidas and not used by other brands.
The Adidas shoe size converter translates Adidas US sizes to EU, UK, and centimeters using Adidas's official sizing. Adidas is unique in using fractional EU sizes — you may see EU 42⅔ or EU 43⅓ on the box. Each half US size moves the EU size on by two-thirds of a point, which gives Adidas finer steps than brands that round to whole or half EU values. This tool also includes a complete Adidas model fit guide for Ultraboost, Yeezy, Samba, Stan Smith, and more.
Adidas Men's Shoe Size Chart — US, UK, EU & CM
Source: Adidas official size guide (adidas.com). Fractional EU sizes shown as labeled on products.
| US | UK | EU (Adidas) | Foot CM |
|---|---|---|---|
| 4 | 3.5 | 36 | 22.1 |
| 4.5 | 4 | 36⅔ | 22.5 |
| 5 | 4.5 | 37⅓ | 22.9 |
| 5.5 | 5 | 38 | 23.3 |
| 6 | 5.5 | 38⅔ | 23.8 |
| 6.5 | 6 | 39⅓ | 24.2 |
| 7 | 6.5 | 40 | 24.6 |
| 7.5 | 7 | 40⅔ | 25.0 |
| 8 | 7.5 | 41⅓ | 25.5 |
| 8.5 | 8 | 42 | 25.9 |
| 9 | 8.5 | 42⅔ | 26.3 |
| 9.5 | 9 | 43⅓ | 26.7 |
| 10 | 9.5 | 44 | 27.1 |
| 10.5 | 10 | 44⅔ | 27.6 |
| 11 | 10.5 | 45⅓ | 28.0 |
| 11.5 | 11 | 46 | 28.4 |
| 12 | 11.5 | 46⅔ | 28.8 |
| 13 | 12.5 | 48 | 29.7 |
Adidas Women's Shoe Size Chart
| US | UK | EU (Adidas) | Foot CM |
|---|---|---|---|
| 5 | 3.5 | 36 | 22.1 |
| 5.5 | 4 | 36⅔ | 22.5 |
| 6 | 4.5 | 37⅓ | 22.9 |
| 6.5 | 5 | 38 | 23.3 |
| 7 | 5.5 | 38⅔ | 23.8 |
| 7.5 | 6 | 39⅓ | 24.2 |
| 8 | 6.5 | 40 | 24.6 |
| 8.5 | 7 | 40⅔ | 25.0 |
| 9 | 7.5 | 41⅓ | 25.5 |
| 9.5 | 8 | 42 | 25.9 |
| 10 | 8.5 | 42⅔ | 26.3 |
| 10.5 | 9 | 43⅓ | 26.7 |
| 11 | 9.5 | 44 | 27.1 |
Adidas Model Fit Guide
| Model | Fit | Recommendation |
|---|---|---|
| Stan Smith | True to size, slightly narrow | Wide feet: size up 0.5 |
| Superstar | True to size, wide toe box | Order your true size |
| Samba | Narrow | Wide/medium feet: size up 0.5 |
| Gazelle | True to size | Order your true size |
| Forum Low/High | True to size | Order your true size |
| Ultraboost | True to size, snug knit | Very wide feet: size up 0.5 |
| NMD R1/R2 | Runs large | Size down 0.5 |
| Yeezy 350 V2 | Runs small, very narrow | Size up 0.5 to 1 full size |
| Yeezy 500 | True to size | Order your true size |
| Yeezy 700 | True to size, wide toe | Order your true size |
Frequently Asked Questions
What is Adidas US 9 in EU?
Adidas US men's 9 = EU 42⅔ = UK 8.5 = 26.3 cm. Adidas uses fractional EU sizes rather than rounding to a whole number.
Why does Adidas use fractional EU sizes?
Adidas steps its EU sizes in thirds (42, 42⅔, 43⅓…), which tracks its half-size US steps more precisely than rounding to whole numbers. The fractions appear on the shoe box and inside tongue label.
What size Yeezy 350 should I get?
Size up 0.5 from your true US size. If between sizes, go up rather than down. The Primeknit upper is very snug and does not stretch significantly.
Do Adidas Samba run true to size?
Samba runs true to size in length but narrow. Wide or medium feet should size up 0.5 for comfortable all-day wear.
Are Adidas and Nike sizes the same?
The US number fits the same foot length, but Adidas tends to run wider than Nike. An Adidas and Nike shoe in the same US size will feel different in width.