Hat Sizes

Metric Head
Size (cms)
American
Hat Size
Imperial Head
Size (inches)
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
6
1/4
6
3/8
6
1/2
6
5/8
6
3/4
6
7/8
7
7
1/8
7
1/4
7
3/8
7
1/2
7
5/8
7
3/4
7
7/8
8
19
1/2
19
7/8
20
1/4
20
3/4
21
1/8
21
1/2
21
7/8
22
1/4
22
5/8
23
23
1/2
23
7/8
24
1/4
24
5/8
25
Measure around head, half an inch above the ears, half way down the forehead.
If between sizes, have the larger size!