US Size UK Size EU Sizes JP Size Korea Size Inches Milimeters
4 N/A N/A 22 230 8 5/8 221
5 N/A N/A 23 240 9 229
6 N/A N/A 24 250 9 3/8 238
7 6 39-40 25 260 9 5/8 246
8 7 41-42 26 265 10 255
9 8 42-43 27 270 10 3/8 263
10 9 43-44 28 280 10 5/8 272
11 10 45-46 29 290 11 280
12 11 46-47 30 300 11 3/8 288
13 12 48-49 31 310 11 5/8 297
14 N/A N/A N/A N/A 12 305
15 N/A N/A N/A N/A 12 3/8 314
16 N/A N/A N/A N/A 12 5/8 323
17 N/A N/A N/A N/a 13 331