UGG 

 

Women's UGG Boot Sizing

US Size UK Size EU Size Japan Size CM Size IN Size
5 3.5 36 22.0 22.0 8 5/8
5.5 4 36.5 22.5 22.5 8 7/8
6 4.5 37 23.0 23.0 9
6.5 5 37.5 23.5 23.5 9 1/4
7 5.5 38 24.0 24.0 9 1/2
7.5 6 38.5 24.5 24.5 9 5/8
8 6.5 39 25.0 25.0 9 7/8
8.5 7 39.5 25.5 25.5 10
9 7.5 40 26.0 26.0 10 1/4
9.5 8 40.5 26.5 26.5 10 3/8
10 8.5 41 27.0 27.0 10 5/8
10.5 9 41.5 28.0 28.0 11
11 9.5 42 28.5 28.5 11 1/4
11.5 10 42.5 29.0 29.0 11 3/8
12 10.5 43 29.5 29.5 11 5/8

 

 

Men's UGG Boot Sizing

US Size UK Size EU Size Japan Size CM Size IN Size
3 2 34.5 21.0 21.0 8 1/4
3.5 2.5 35 21.5 21.5 8 1/2
4 3 35.5 22.0 22.0 8 5/8
4.5 3.5 36 22.5 22.5 8 7/8
5 4 37 23.0 23.0 9
5.5 4.5 37.5 23.5 23.5 9 1/4
6 5 38 24.0 24.0 9 1/2
6.5 5.5 38.5 24.5 24.5 9 5/8
7 6 39.5 25.0 25.0 9 7/8
7.5 6.5 40 25.5 25.5 10
8 7 40.5 26.0 26.0 10 1/4
8.5 7.5 41.5 26.5 26.5 10 3/8
9 8 42 27.0 27.0 10 5/8
9.5 8.5 42.5 27.5 27.5 10 7/8
10 9 43 28.0 28.0 11
10.5 9.5 44 28.5 28.5 11 1/4
11 10 44.5 29.0 29.0 11 3/8
11.5 10.5 45 29.5 29.5 11 5/8
12 11 45.5 30.0 30.0 11 3/4
12.5 11.5 46..5 30.5 30.5 12
13 12 47 31.0 31.0 12 1/4
13.5 12.5 47.5 31.5 31.5 12 3/8
14 13 48.5 32.0 32.0 12 5/8
14.5 13.5 49 32.5 32.5 12 3/4
15 14 49.5 33.0 33.0 13
16 15 50.5 33.5 33.5 13 1/4
17 16 51 34.0 34.0 13 3/8
18 17 52 34.5 34.5 13 5/8

 

 

Infants UGG Boot Sizing

US Size UK Size EU Size Japan Size CM Size IN Size
2 & 3 (Small) 2 18 13.0 13.0 5 1/8
4 & 5 (Medium) 4 20.5 14.0 14.0 5 1/2
6 5 22.5 14.5 14.5 5 3/4
7 6 23.5 15.0 15.0 5 7/8
8 7 25 15.5 15.5 6 1/8
9 8 26 16.0 16.0 6 1/4

 

 

Little Kids UGG Boot Sizing

US Size UK Size EU Size Japan Size CM Size IN Size
6 5 22.5 14.5 14.5 5 3/4
7 6 23.5 14.8 14.8 5 7/8
8 7 25 15.0 15.0 5 7/8
8.5 7.5 25.5 15.5 15.5 6 1/8
9 8 26 16.0 16.0 6 1/4
9.5 8.5 26.5 16.3 16.3 6 3/8
10 9 27 16.5 16.5 6 1/2
10.5 9.5 27.5 16.8 16.8 6 5/8
11 10 28 17.0 17.0 6 3/4
11.5 10.5 28.5 17.2 17.2 6 3/4
12 11 29 17.5 17.5 6 7/8
12.5 11.5 29.5 17.8 17.8 7
13 12 30 18.0 18.0 7 1/8
13.5 12.5 30.5 18.5 18.5 7 1/4

 

 

Big Kids UGG Boot Sizing

US Size UK Size EU Size Japan Size CM Size IN Size
1 13 31 19.0 19.0 7 1/2
1.5 13.5 31.5 19.5 19.5 7 5/8
2 1 32 20.0 20.0 7 7/8
2.5 1.5 32.5 20.5 20.5 8 1/8
3 2 33 20.8 20.8 8 1/4
3.5 2.5 33.5 21.0 21.0 8 1/4
4 3 34 21.5 21.5 8 1/2
4.5 3.5 34.5 21.8 21.8 8 5/8
5 4 35 22.0 22.0 8 5/8
5.5 4.5 35.5 22.3 22.3 8 3/4
6Y 5 36 22.5 22.5 8 7/8