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How to measure your hat size

Take a measuring tape and place it around the circumference of the head, slightly above the ears, with the tape held fairly closely to the head.

Measure your head and then compare the measurement with the table above to find your hat size.

If you don't have a tape measure, then use a piece of string to measure around your head and then check the length using a ruler or other measure.

CM/Inches UK US Hat Size
49cm / 19.3" 6 6 1/8 -
50cm / 19.7" 6 1/8 6 1/4 -
51cm / 20.1" 6 1/4 6 3/8 -
52cm / 20.5" 6 3/8 6 1/2 -
53cm / 20.9" 6 1/2 6 5/8 -
54cm / 21.3" 6 5/8 6 3/4 S
55cm / 21.7" 6 3/4 6 7/8 S
56cm / 22" 6 7/8 7 M
57cm / 22.4" 7 7 1/8 M
58cm / 22.8" 7 1/8 7 1/4 L
59cm / 23.2" 7 1/4 7 3/8 L
60cm / 23.6" 7 3/8 7 1/2 XL
61cm / 24" 7 1/2 7 5/8 XL
62cm / 24.4" 7 5/8 7 3/4 -
63cm / 24.8" 7 3/4 7 7/8 -
64cm / 25.2" 7 7/8 8 -
65cm / 25.6" 8 8 1/8 -