Inevitably there is some variance in the sizing standards used by manufacturers.

Men's Clothing Sizes
Inter­national Chest (in) Chest (cm) Waist (in) Waist (in)
XS 34 86 28-30 71-76
S 36 91 30-32 76-81
M 38-40 97-102 32-34 81-86
L 42-44 107-112 34-36 86-92
XL 46-48 117-122 36-38 92-97
2XL 50-52 127-132 38-40 97-102
3XL 54-56 137-142 40-42 102-107
4XL 58-60 147-152 42-44 107-112

Men's Shoe Sizes by Brand
UK Size Australia USA Size General Conti­nental adidas Nike Puma Converse
5.5 5.5 6 38 2/3 38 2/3 39 38 1/2 38
6 6 6.5 39 1/3 39 1/3 40 39 39
6.5 6.5 7 40 40 40 1/2 40 39 1/2
7 7 7.5 40 2/3 40 2/3 41 40 1/2 40
7.5 7.5 8 41 1/3 41 1/3 42 41 41
8 8 8.5 42 42 42 1/2 42 41 1/2
8.5 8.5 9 42 2/3 42 2/3 43 42 1/2 42
9 9 9.5 43 1/3 43 1/3 44 43 42 1/2
9.5 9.5 10 44 44 44 1/2 44 43
10 10 10.5 44 2/3 44 2/3 45 44 1/2 44
10.5 10.5 11 45 1/3 45 1/3 45 1/2 45 44 1/2
11 11 12 46 46 46 46 45
11.5 11.5 12.5 46 2/3 46 2/3 47 46 1/2 46
12 12 13 47 1/3 47 1/3 47 1/2 47 46 1/2
12.5 12.5 13.5 48 48 48 - -
13 13 14 48 1/3 48 1/3 48 1/2 48 1/2 48
13.5 13.5 14.5 49 1/3 49 1/3 49 49 -
14 14 15 50 50 49 1/2 49 1/2 -
15 15 16 - - 50 1/2 51 -

Women's Clothing Sizes
UK Inter­national Bust / Chest (in) Bust / Chest (cm) Waist (in) Waist (cm) Hips (in) Hips (cm)
6 2XS 30 76 22 56 32 81
8 XS 32 81 24 61 34 86
10 S 34 86 25 64 35 89
12 M 36 91 27 69 37 94
14 L 38 97 29 74 39 99
16 XL 40 102 31 79 40 104
18 2XL 42 107 33 84 43 109
20 3XL 44 112 35 89 45 114
22 4XL 46 117 37 94 47 119

Women's Shoe Sizes by Brand
UK Size Australia USA Size General Conti­nental adidas Nike Puma Converse
2.5 4.5 5 35 35 35 35 34 1/2
3 5 5.5 35 1/2 35 1/2 36 35 1/2 35
3.5 5.5 6 36 36 36 1/2 36 36
4 6 6.5 36 2/3 36 2/3 37 1/2 37 36 1/2
4.5 6.5 7 37 1/3 37 1/3 38 37 1/2 37
5 7 7.5 38 38 38 1/2 38 37 1/2
5.5 7.5 8 38 2/3 38 2/3 39 38 1/2 38
6 8 8.5 39 1/3 39 1/3 40 39 39
6.5 8.5 9 40 40 40 1/2 40 39 1/2
7 9 9.5 40 2/3 40 2/3 41 40 1/2 40
7.5 9.5 10 41 1/3 41 1/3 42 41 41
8 10 10.5 42 42 42 1/2 42 41 1/2
8.5 10.5 11 42 2/3 42 2/3 43 42 1/2 42
9 11 11.5 43 1/3 43 1/3 44 43 42 1/2
9.5 11.5 12 44 44 44 1/2 44 43

Junior and Infant Clothing Sizes
UK Boys Size Boys Age UK Girls Size Girls Age
XXSB 5-6 yrs XXSG 5-6 yrs
XSB 6-7 yrs XSG 6-7 yrs
SB 7-8 yrs SG 7-8 yrs
MB 9-10 yrs MG 9-10 yrs
LB 11-12 yrs LG 11-12 yrs
XLB 13 yrs XLG 13 yrs

Junior and Infant Shoe Sizes by Brand
UK Size USA Size General Conti­nental adidas Nike Puma Converse
C3 C3.5 19 19 19 19 -
C4 C4.5 20 20 20 20 -
C5 C5.5 21 21 21 1/2 22 -
C6 C6.5 23 23 22 1/2 23 -
C7 C7.5 25 24 24 24 -
C8 C8.5 26 25 1/2 25 1/2 25 -
C9 C9.5 27 26 1/2 26 1/2 27 -
C10 C10.5 28 28 27 1/2 28 -
C11 C11.5 29 29 28 1/2 29 -
C12 C12.5 30 1/2 30 1/2 30 31 -
C13 C13.5 31 1/2 31 1/2 31 1/2 32 -
1 1.5 33 33 33 33 -
2 2.5 34 34 34 34 1/2 34
3 3.5 35 1/2 35 1/2 35 1/2 35 1/2 35
4 4.5 36 2/3 36 2/3 36 1/2 37 36 1/2
5 5.5 38 38 38 38 37 1/2
5.5 6 38 2/3 38 2/3 38 1/2 38 1/2 38
6 6.5 39 1/3 39 1/3 39 39 39
6.5 7 40 40 39 1/2 40 39 1/2

Women's Crocs Shoe Sizes
UK Size USA Size General Continental Foot Length (in) Foot Length (mm)
1 3 32.5 8 204
1.5 3.5 33 8 1/8 208
2 4 33.5 8 3/8 212
2.5 4.5 34 8 1/2 217
3 5 35 8 5/8 221
3.5 5.5 35.5 8 7/8 225
4 6 36.5 9 229
4.5 6.5 37 9 1/8 233
5 7 37.5 9 3/8 238
5.5 7.5 38 9 1/2 242
6 8 38.5 9 5/8 246
6.5 8.5 39 9 7/8 250
7 9 39.5 10 255
7.5 9.5 40 10 1/8 259
8 10 41 10 3/8 263
8.5 10.5 42 10 1/2 267
9 11 42.5 10 5/8 272
9.5 11.5 43 10 7/8 276
10 12 43.5 11 280

Men's Crocs Shoe Sizes
UK Size USA Size General Continental Foot Length (in) Foot Length (mm)
3 4 36.5 8 5/8 221
3.5 4.5 37 8 7/8 225
4 5 37.5 9 229
4.5 5.5 38 9 1/4 233
5 6 38.5 9 3/8 238
5.5 6.5 39 9 1/2 242
6 7 39.5 9 5/8 246
6.5 7.5 40 9 7/8 250
7 8 41 10 255
7.5 8.5 42 10 1/4 259
8 9 42.5 10 3/8 263
8.5 9.5 43 10 1/2 267
9 10 43.5 10 5/8 272
9.5 10.5 44 10 7/8 276
10 11 45 11 280
10.5 11.5 46 11 1/4 284
11 12 46.5 11 3/8 288
11.5 12.5 47.5 11 1/2 293
12 13 48 11 5/8 297
12.5 13.5 48.5 11 7/8 301
13 14 49 12 305
13.5 14.5 50 12 1/4 310
14 15 51 12 3/8 314

Children's and Juniors' Crocs Shoe Sizes
UK Size USA Size General Continental Foot Length (in) Foot Length (mm)
1 C1 16-17 3 1/2 90
2 C2 17-18 3 7/8 98
3 C3 18-19 4 1/8 107
4 C4 19-20 4 1/2 115
5 C5 20-21 4 7/8 123
6 C6 22-23 5 1/8 132
7 C7 23-24 5 1/2 140
8 C8 24-25 5 7/8 149
9 C9 25-26 6 1/8 157
10 C10 27-28 6 1/2 166
11 C11 28-29 6 7/8 174
12 C12 29-30 7 1/8 183
13 C13 30-31 7 1/2 191
0-1 J1 32-33 7 7/8 200
1-2 J2 33-34 8 1/8 208
2-3 J3 34-35 8 1/2 217
3-4 J4 36-37 8 5/8 225
4-5 J5 37-38 9 233
5-6 J6 38-39 9 3/8 242