US 3 in EU and UK sizes
A men’s US 3 (or 3Y) is EU 33.5–34 and UK 2; a women’s US 3 is EU 31.5–32 and UK 13.5 by the standard size tables.
The men’s fits a foot of 20.7 to 21.2 cm and the women’s fits a foot of 19.5 to 19.9 cm. A kids’ 3C is much smaller: EU 18–18.5, for a foot of up to 10.8 cm.
Three shoes called US 3
The number alone doesn’t say whose size it is. For the same US 3, each is for a different foot:
US 3 in every size system
| System | Men’s US 3 | Women’s US 3 | Kids’ 3C |
|---|---|---|---|
| Foot length (cm) | 20.7–21.2 | 19.5–19.9 | 10.4–10.8 |
| Foot length (in) | 8.17–8.33 | 7.67–7.83 | 4.08–4.25 |
| EU | 33.5–34 | 31.5–32 | 18–18.5 |
| UK | 2 | 13.5 | 2.5–3 |
| Japan (cm) | 21–21.5 | 19.5–20 | 10.5–11 |
| Mondopoint (mm) | 210–215 | 195–200 | 105–110 |
| Australia and NZ | 2 | 3 | 2.5–3 |
| India (UK sizes) | 2 | 13.5 | 2.5–3 |
| South Korea and China (mm) | 210–215 | 195–200 | 105–110 |
| Brazil | 32 | 30 | 16–17 |
From the standard size tables; where the foot range spans more than one size, the first and last are shown.
What 8 brands print next to a US 3
Each brand’s own chart, on the row for its US 3: 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.