UK 8.5 in US and EU sizes
An adult UK 8.5 is a men’s US 9.5 and a women’s US 11 (EU 41.5–42), for a foot of 26.25 to 26.7 cm.
A kids’ UK 8.5 is much smaller: a kids’ US 8.5C–9C, for a foot of 15.2 to 15.7 cm.
On the brands’ own men’s charts, UK 8.5 is US 9.5 at Allbirds, ANTA and 15 more; US 9 at adidas, HOKA and 5 more; US 8.5 at Converse. Brands size their shoes on their own lasts, so check the brand you’re buying.
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UK 8.5 in every size system
| System | Men’s (adult UK 8.5) | Women’s (adult UK 8.5) | Kids (kids’ UK 8.5) |
|---|---|---|---|
| Foot length (cm) | 26.25–26.7 | 26.25–26.7 | 15.2–15.7 |
| US | 9.5 | 11 | 8.5C–9C |
| EU | 41.5–42 | 41.5–42 | 25–25.5 |
| Mondopoint (mm) | 265–270 | 265–270 | 155–160 |
| Japan (cm) | 26.5–27 | 26.5–27 | 15.5–16 |
| Australia and NZ | 8.5 | 11 | 8.5 |
| South Korea (mm) | 265–270 | 265–270 | 155–160 |
| China (mm) | 265–270 | 265–270 | 155–160 |
| Mexico (cm) | 26.5–27 | 26.5–27 | 15.5–16 |
| Brazil | 40 | 40 | 23–24 |
| Argentina, Uruguay, Paraguay | 41 | 41 | 24–25 |
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 31 brands print next to UK 8.5
| Brand | Men’s chart | Women’s chart | Kids’ chart |
|---|---|---|---|
| adidas size chart (opens the brand’s site) | US 9UK 8.5 · EU 42 2/3 | US 10UK 8.5 · EU 42 2/3 | — |
| Allbirds size chart (opens the brand’s site) | US 9.5UK 8.5 | — | — |
| ANTA size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 43 | — | — |
| ASICS size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 43.5 | US 10.5UK 8.5 · EU 42.5 | — |
| Bata size chart (opens the brand’s site) | — | — | EU 26UK 8.5 |
| Birkenstock size chart (opens the brand’s site) | — | — | EU 26US 8-8.5 · UK 8.5 |
| Bombas size chart (opens the brand’s site) | 9US 8.5-9 · UK 8.5 · EU 42 | — | — |
| Brooks size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 43 | US 10.5UK 8.5 · EU 42.5 | — |
| Clarks size chart (opens the brand’s site) | UK 8.5US 9.5 · EU 42.5 | UK 8.5US 11 · EU 42.5 | UK 8.5US 9 · EU 26 |
| Converse size chart (opens the brand’s site) | US 8.5EU 42 | US 10.5UK 8.5 · EU 42 | US 8.5CUK 8.5 · EU 24.5 |
| Gucci size chart (opens the brand’s site) | UK 8.5EU 42.5 | EU 41.5UK 8.5 | 25US 9 · UK 8.5 |
| HOKA size chart (opens the brand’s site) | US 9UK 8.5 · EU 42 2/3 | US 10UK 8.5 · EU 42 2/3 | — |
| Jordan size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 43 | US 11UK 8.5 · EU 43 | US 9CUK 8.5 · EU 26 |
| KEEN size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 42.5 | US 11UK 8.5 · EU 42 | — |
| Merrell size chart (opens the brand’s site) | US 9UK 8.5 · EU 43 | US 11UK 8.5 · EU 42.5 | US 9.5UK 8.5 · EU 25.5 |
| Mizuno size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 42.5 | US 11UK 8.5 · EU 42.5 | — |
| New Balance size chart (opens the brand’s site) | US 9UK 8.5 · EU 42.5 | US 10.5UK 8.5 · EU 42.5 | US 9UK 8.5 · EU 26 |
| Nike size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 43 | US 11UK 8.5 · EU 43 | US 9CUK 8.5 · EU 26 |
| On size chart (opens the brand’s site) | US 9UK 8.5 · EU 42.5 | US 10.5UK 8.5 · EU 42.5 | US 9UK 8.5 · EU 26 |
| Onitsuka Tiger size chart (opens the brand’s site) | US 9HUK 8.5 · EU 43.5 | US 10HUK 8.5 · EU 42.5 | — |
| PUMA size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 42.5 | US 11UK 8.5 · EU 42.5 | — |
| Salomon size chart (opens the brand’s site) | US 9UK 8.5 · EU 42 2/3 | US 10UK 8.5 · EU 42 2/3 | — |
| Saucony size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 43 | US 11UK 8.5 · EU 43 | 9.5 Little KidsUS 9.5 · UK 8.5 · EU 25.5 |
| Skechers size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 42.5 | — | US 9.5UK 8.5 · EU 26 |
| SOREL size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 42.5 | US 10.5UK 8.5 · EU 41.5 | — |
| Teva size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 42.5 | US 10.5UK 8.5 · EU 41.5 | — |
| Timberland size chart (opens the brand’s site) | US 9UK 8.5 · EU 43 | — | US 9UK 8.5 · EU 26 |
| UGG size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 42.5 | US 10.5UK 8.5 · EU 41.5 | — |
| Under Armour size chart (opens the brand’s site) | US 9.5UK 8.5 · EU 43 | US 11UK 8.5 · EU 43 | US 9KUK 8.5 · EU 26 |
| Vans size chart (opens the brand’s site) | EU 42.5US 9.5 · UK 8.5 | EU 42.5US 11 · UK 8.5 | US 9CUK 8.5 · EU 25.5 |
| Zara size chart (opens the brand’s site) | — | — | US 9.5UK 8.5 · EU 26 |
The row each brand’s own chart prints for UK 8.5, 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.