RockRooster Boots Size Chart

US EU UK Inches Millimeter
4 36 3 8 1/2 – 8 7/8 218-226
5 37 4 8 7/8 – 9 1/4 226-234
6 38 5 9 1/4 – 9 3/4 234-247
7 39 6 9 3/4 – 9 7/8 247-251
7.5 40 6.5 9 7/8 – 10 1/16 251-256
8 41 7 10 1/16 – 10 1/2 256-260
8.5 41 1/2 7.5 10 1/4 – 10 3/8 260-264
9 42 8 10 3/8 – 10 9/16 264-269
9.5 42 1/2 8.5 10 9/16 – 10 3/4 269-273
10 43 9 10 3/4 – 10 7/8 273-277
10.5 43 1/2 9.5 10 7/8 – 11 1/16 277-281
11 44 10 11 1/16 – 11 1/4 281-285
11.5 45 10.5 11 1/4 – 11 7/16 285-290
12 46 11 11 7/16 – 11 3/4 290-298
13 47 12 11 3/4 – 12 1/16 298-307
14 48 13 12 1/16 – 12 1/4 307-315
15 49 14 12 1/4 – 12 5/8 315-323

Recommended to downsize by 1/2 if you have narrow feet.

If you are purchasing boots based off sneaker size it’s also recommended to downsize by 1/2.