HJC Helmet Size Conversion Chart

This HJC Helmet Size chart will help you determine what size HJC helmet will suit you best.

 
 
HJC Helmet Size Conversion Chart
   
 
 
Size
 
Centimeter
 
Hat Size
 
Inches
 
 
XXS
 
51-52
 
6 3/8 – 6 1/2
  20- 20 1/2  
 
XS
 
53-54
 
6 5/8 – 6 3/4
  20 7/8 – 21 1/4  
 
S
 
55-56
 
6 7/8 – 7
  21 5/8 – 22  
 
M
 
57-58
 
7 1/8 – 7 1/4
  22 1/2 – 22 7/8  
 
L
 
59-60
 
7 3/8 – 7 1/2
  23 1/4 – 23 5/8  
 
XL
 
61-62
 
7 5/8 – 7 3/4
  24 – 24 3/8  
 
XXL
 
63-64
 
7 7/8 – 8
  24 3/4 – 25 1/4  
 
XXXL
 
65-66
 
8 1/8 – 8 1/4
  25 5/8 – 26  
 
Youth S
 
49-50
  6 1/8 – 6 1/4   19 1/4 – 19 3/4  
 
Youth M
 
51-52
  6 3/8 – 6 1/2   20 – 20 1/2  
 
Youth L
 
53-54
  6 5/8 – 6 3/4   20 7/8 – 21 1/4  
 
Youth S/M
 
49-50
 
6 1/8 – 6 1/4
 
19 1/4 – 19 3/4
 
 
Youth L/XL
 
51-52
 
6 3/8 – 6 1/2
 
20 – 20 1/2