Hat size conversion guide

Like heads, hat sizes will vary from person to person. Please remember to measure yourself before ordering a hat. You can use the steps below to get a good measurement.

  1. 1. To determine your head (hat) size, measure your head using a flexible tape measure (one made of plastic or cloth).
  2. 2. If you don't have a flexible measuring tape, you can use a non-stretchy string (although this is not as accurate). After you have marked the exact circumference, lie the string down on a flat surface and measure the length with a flat ruler.
  3. 3. Measure circumference of head just above top of ears. Wrap tape gently around head making certain tape lies midway on your occipital bone (that little bump in the middle of the back of your head).
  4. 4. Don't pull the tape too tightly or your hat will fit that tightly.
  5. 5. Measure 2 or 3 times to be accurate.

When selecting a hat you will note that our hats products have the following format.

Size S [55] [UK-6] [US-6~7]

The first value is the size name
The second value is the size in cm (centimeters)
The third value is the UK size
The fourth value is the US size

The table below is from Wikipedia.

Hat sizes

size

Youth S/M

Youth L/XL

XXS

XS

S

M

L

XL

XXL

XXXL

Age (years)

0

½

1

2

Circumference in cm

34

43

47

48

49

50

51 - 52

53 - 54

55 - 56

57 - 58

59 - 60

61 - 62

63 - 64

65 - 66

Circumference in inches

13⅜

17

18½

18¾

19¼

19¾

20 - 20½

20 - 21¼

21 - 22

22 - 22½⅞

23 - 23½⅝

24 - 24⅜

24¾ - 25¼

25 - 26

UK hat size

5

6

6

6 - 6¼⅜

6 - 6½⅝

6 - 6¾⅞

7 - 7⅛

7 - 7¼⅜

7 - 7½

7 - 7¾⅞

8 - 8⅛

US hat size

5⅞

6

6⅛

6 - 6½

6⅝- 6¾

6 - 7

7 - 7¼

7 - 7½

7 - 7¾

7 - 8

8 - 8¼

French hat size

0

½

1

2 - 2½

3 - 3½

4 - 4½

5 - 5½

6 - 6½

7 - 7½

8 - 8½

9 - 9½