Hat Size Chart
Measure head round the crown just above the ears in
centimetres and if you are in between sizes go to larger size.

American
Metric
Imperial
Hat Size
Head Size
Head Size
(cms)
(inches)
6 1/4
50
19 1/2
6 3/8
51
19 7/8
6 1/2
52
20 1/4
6 5/8
53
20 3/4
6 3/4
54
21 1/8
6 7/8
55
21 1/2
7
56
21 7/8
7 1/8
57
22 1/4
7 1/4
58
22 5/8
7 3/8
59
23
7 1/2
60
23 1/2
7 5/8
61
23 7/8
7 3/4
62
24 1/4
7 7/8
63
24 5/8
8
64
25