Men's
US UK Euro Japan cm inches
3 2 34.5 210 21.0 8.2
3.5 2.5 35 215 21.5 8.4
4 3 35.5 220 22.0 8.6
4.5 3.5 36 225 22.5 8.8
5 4 37 230 23.0 9.0
5.5 4.5 37.5 235 23.5 9.2
6 5 38 240 24.0 9.4
6.5 5.5 38.5 245 24.5 9.6
7 6 39.5 250 25.0 9.8
7.5 6.5 40 255 25.5 10.0
8 7 40.5 260 26.0 10.2
8.5 7.5 41.5 265 26.5 10.4
9 8 42 270 27.0 10.6
9.5 8.5 42.5 275 27.5 10.8
10 9 43 280 28.0 11.0
10.5 9.5 44 285 28.5 11.2
11 10 44.5 290 29.0 11.4
11.5 10.5 45 295 29.5 11.6
12 11 45.5 300 30.0 11.8
12.5 11.5 46.5 305 30.5 12.0
13 12 47 310 31.0 12.2
13.5 12.5 47.5 315 31.5 12.4
14 13 48.5 320 32.0 12.5
14.5 13.5 49 325 32.5 12.7
15 14 49.5 330 33.0 12.9

Women's
US UK Euro Japan cm inches
5 3.5 36 220 22.0 8.6
5.5 4 36.5 225 22.5 8.8
6 4.5 37 230 23.0 9.0
6.5 5 37.5 235 23.5 9.2
7 5.5 38 240 24.0 9.4
7.5 6 38.5 245 24.5 9.6
8 6.5 39 250 25.0 9.8
8.5 7 39.5 255 25.5 10.0
9 7.5 40 260 26.0 10.2
9.5 8 40.5 265 26.5 10.4
10 8.5 41 270 27.0 10.6
10.5 94 41.5 280 28.0 11.0
11 9.5 42 285 28.5 11.2
11.5 10 42.5 290 29.0 11.4
12 10.5 43 295 29.5 11.6

Infants'
US UK Euro Japan cm inches
Small 2/3 2 18 130 13.0 5.1
Medium 4/5 4 20.5 140 14.0 5.5
Large 6 5 22.5 145 14.5 5.7
7 6 23.5 150 15.0 5.9
8 7 25 155 15.5 6.1
9* 8 26 160 16.0 6.2

Toddlers'
US UK Euro Japan cm inches
6 5 22.5 145 14.5 5.7
7 6 23.5 148 14.8 5.8
8 7 25 150 15.0 5.9
8.5 7.5 25.5 155 15.5 6.1
9 8 26 160 16.0 6.2
9.5 8.5 26.5 163 16.3 6.4
10 9 27 165 16.5 6.5
10.5 9.5 27.5 168 16.8 6.6
11 10 28 170 17.0 6.7
11.5 10.5 28.5 172 17.2 6.8
12 11 29 175 17.5 6.9
12.5 11.5 29.5 178 17.8 7.0
13 12 30 180 18.0 7.1
13.5** 12.5 30.5 185 18.5 7.2

Kids'
USA UK Euro Japan cm inches
1 13 31 197 19.7 7.75
2 13.5 31.5 206 20.6 8.1
3 1 32 216 21.6 8.5
4 1.5 32.5 222 22.2 8.75
5 2 33 232 23.2 9.1
6 2.5 33.5 241 24.1 9.5
7*** 3 34 248 24.8 9.75

*After U.S. infants' size 9, use toddlers' size 9 and up.

**After U.S. toddlers' size 13.5, use kids' size 1 and up.

***After U.S. kids' size 7, use men's size 7 or women's size 8 and up.

Note: From infants' to adults' sizing, footwear is gradually made wider and contoured to fit maturing feet. Sizing categories with overlapping foot-length measurements do not have exactly the same fit.