UK 9 in US and EU sizes
An adult UK 9 is a men’s US 10 and a women’s US 11.5 (EU 42.5–43), for a foot of 26.7 to 27.1 cm.
A kids’ UK 9 is much smaller: a kids’ US 9C–9.5C, for a foot of 15.7 to 16.1 cm.
On the brands’ own men’s charts, UK 9 is US 10 at Allbirds, ANTA and 25 more; US 9.5 at adidas, HOKA and 5 more; US 9 at Converse. Brands size their shoes on their own lasts, so check the brand you’re buying.
Convert another size
UK 9 in every size system
| System | Men’s (adult UK 9) | Women’s (adult UK 9) | Kids (kids’ UK 9) |
|---|---|---|---|
| Foot length (cm) | 26.7–27.1 | 26.7–27.1 | 15.7–16.1 |
| US | 10 | 11.5 | 9C–9.5C |
| EU | 42.5–43 | 42.5–43 | 25.5–26.5 |
| Mondopoint (mm) | 270–275 | 270–275 | 160–165 |
| Japan (cm) | 27–27.5 | 27–27.5 | 16–16.5 |
| Australia and NZ | 9 | 11.5 | 9 |
| South Korea (mm) | 270–275 | 270–275 | 160–165 |
| China (mm) | 270–275 | 270–275 | 160–165 |
| Mexico (cm) | 27–27.5 | 27–27.5 | 16–16.5 |
| Brazil | 41 | 41 | 24–25 |
| Argentina, Uruguay, Paraguay | 42 | 42 | 25–26 |
From the standard size tables. A size fits a range of feet; where that range spans two sizes in another system, both are shown. A dash means the system has no size there.
What 40 brands print next to UK 9
The row each brand’s own chart prints for UK 9, linked. Brands without that exact size on a chart are left out. Not affiliated with any brand.
Size tables checked 2026-10-23; brand sizes from each brand’s own chart, linked above. An estimate to help you choose: fit varies by brand and model. Not medical advice.