American
Men's
Size
American
Women's
Size
Bluetongue
UK
Size
 Euro Size
Foot
Length
MM
4
5.5
3
35.5
 231
4.5
6
3 or 4
36
235
5
6.5
4
37
 238
5.5
7
4.5
37.5
241
6
7.5
5
38
 245
6.5
8
5.5
38.5
248
7
8.5
6
39
 251
7.5
9
6.5
40
254
8
9.5
7
41
 257
8.5
10
7.5
42
260
9
10.5
8
43
 267
9.5
11
8.5
 
 
10
11.5
9
 
 271
10.5
 
9.5
44
273
11
 
10
 
  
11.5
 
10.5
45
279
12
 
11
 
  
12.5
 
11.5
46.5
286
13
 
12
 
 289
14
 
13
48.5
 295
15
 
14
 
  
16
 
15
 
  

NOTE: Use the chart to convert American size to Bluetongue Boots UK Size. Sizes are an approximation. For example, women's sizes could run 2 ½ sizes smaller (Australian sizing). Bluetongue boot soles are Triple E width but they can fit sizes B through Triple E. Thicker socks are recommended.
Any questions, please call Bluetongue Boots USA at 760-746-9632.