US 11.5 in EU and UK sizes
A men’s US 11.5 is EU 44–45 and UK 10.5; a women’s US 11.5 is EU 42.5–43 and UK 9 by the standard size tables.
The men’s fits a foot of 27.9 to 28.4 cm and the women’s fits a foot of 26.7 to 27.1 cm. A kids’ 11.5C is much smaller: EU 28.5–29, for a foot of up to 18.0 cm.
Three shoes called US 11.5
The number alone doesn’t say whose size it is. For the same US 11.5, each is for a different foot:
US 11.5 in every size system
| System | Men’s US 11.5 | Women’s US 11.5 | Kids’ 11.5C |
|---|---|---|---|
| Foot length (cm) | 27.9–28.4 | 26.7–27.1 | 17.6–18.0 |
| Foot length (in) | 11.00–11.17 | 10.50–10.67 | 6.92–7.08 |
| EU | 44–45 | 42.5–43 | 28.5–29 |
| UK | 10.5 | 9 | 11–11.5 |
| Japan (cm) | 28–28.5 | 27–27.5 | 18 |
| Mondopoint (mm) | 280–285 | 270–275 | 180 |
| Australia and NZ | 10.5 | 11.5 | 11–11.5 |
| India (UK sizes) | 10.5 | 9 | 11–11.5 |
| South Korea and China (mm) | 280–285 | 270–275 | 180 |
| Brazil | 42–43 | 41 | 27 |
From the standard size tables; where the foot range spans more than one size, the first and last are shown.
What 27 brands print next to a US 11.5
Each brand’s own chart, on the row for its US 11.5: brands differ by half a size or more in UK and EU.
As printed on each brand’s chart, linked; “—” where the chart has no such size or column. Not affiliated with any brand.
Convert another size
Size tables checked 2026-10-23; brand sizes from each brand’s own charts, linked above. An estimate to help you choose: fit varies by brand and model.