UK 3 in US and EU sizes

An adult UK 3 is a men’s US 4 and a women’s US 5.5 (EU 34.5–35.5), for a foot of 21.6 to 22.0 cm.

A kids’ UK 3 is much smaller: a kids’ US 3C–3.5C, for a foot of 10.6 to 11.0 cm.

On the brands’ own men’s charts, UK 3 is US 4 at ANTA, ASICS and 7 more; US 3.5 at Jordan, New Balance and Nike; US 3 at Converse. Brands size their shoes on their own lasts, so check the brand you’re buying.

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Sizes for

UK 3 in every size system

SystemMen’s (adult UK 3)Women’s (adult UK 3)Kids (kids’ UK 3)
Foot length (cm)21.6–22.021.6–22.010.6–11.0
US45.53C–3.5C
EU34.5–35.534.5–35.518–19
Mondopoint (mm)220–225220–225110–115
Japan (cm)22–22.522–22.511–11.5
Australia and NZ35.53
South Korea (mm)220–225220–225110–115
China (mm)220–225220–225110–115
Mexico (cm)22–22.522–22.511–11.5
Brazil33–3433–3416–17
Argentina, Uruguay, Paraguay34–3534–3517–18

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 35 brands print next to UK 3

BrandMen’s chartWomen’s chartKids’ chart
adidas——US 3.5UK 3 · EU 35.5
ANTAUS 4UK 3 · EU 36US 5.5UK 3 · EU 36—
ASICSUS 4UK 3 · EU 36US 5UK 3 · EU 35.5US 4UK 3 · EU 36
Bata——EU 19UK 3
Bombas—5US 4.5-5 · UK 3 · EU 35.5—
BrooksUS 4UK 3 · EU 36US 5UK 3 · EU 35.5—
Campus——UK 3US 4 · EU 35.5
Clarks—UK 3US 5.5 · EU 35.5UK 3EU 18.5
ConverseUS 3EU 35US 5UK 3 · EU 35US 3CUK 3 · EU 19
CrocsM4/W6US 4 · UK 3 · EU 36-37US 5UK 3 · EU 34-35US C3UK 3 · EU 18-19
Dr. MartensUK 3US 4 · EU 36UK 3US 5 · EU 36UK 3US 4 · EU 19
Fila—UK 3US 4 · EU 36US 4UK 3 · EU 36
Golden Goose—EU 36US 6 · UK 3—
Gucci—EU 36UK 319US 3.5 · UK 3
JordanUS 3.5UK 3 · EU 35.5US 5.5UK 3 · EU 36US 3.5YUK 3 · EU 35.5
KEEN—US 5.5UK 3 · EU 35.5US 4UK 3 · EU 19
Liberty—UK 3US 4 · EU 36UK 3US 4 · EU 36
Merrell—US 5.5UK 3 · EU 35.5US 4UK 3 · EU 20
New BalanceUS 3.5UK 3 · EU 35.5US 5UK 3 · EU 35US 3.5UK 3 · EU 19
NikeUS 3.5UK 3 · EU 35.5US 5.5UK 3 · EU 36US 3.5YUK 3 · EU 35.5
On—US 5UK 3 · EU 36—
Onitsuka TigerUS 4UK 3 · EU 36US 5UK 3 · EU 35.5US 4UK 3 · EU 36
PUMA—US 5.5UK 3 · EU 35.5US 4UK 3 · EU 19
Red Tape—UK 3US 5 · EU 36—
SauconyUS 4UK 3 · EU 36US 5.5UK 3 · EU 364 Little KidsUS 4 · UK 3 · EU 20
Skechers—US 6UK 3 · EU 36US 4UK 3 · EU 19.5
SOREL—US 5UK 3 · EU 36US 4UK 3 · EU 21
TevaUS 4UK 3 · EU 35US 5UK 3 · EU 36US 4TUK 3 · EU 19
Timberland—US 5UK 3 · EU 35.5US 3.5UK 3 · EU 19
UGGUS 4UK 3 · EU 37US 5UK 3 · EU 36US 4KUK 3 · EU 36
Under Armour—US 5UK 3 · EU 35.5US 3.5UK 3 · EU 35.5
VansEU 35UK 3EU 35US 5.5 · UK 3US 3.5CUK 3 · EU 18.5
VejaEU 36US W5 · UK 3EU 36UK 3—
Woodland—UK 3US 5 · EU 36—
Zara—US 6UK 3 · EU 36US 4UK 3 · EU 19

The row each brand’s own chart prints for UK 3, 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.