To ensure you choose the perfect size hat for your head, use our trusted tape technique for getting it just right.

Calculating your head size

  1. 1

    Use a soft tape measure

  2. 2

    Place it around your head, positioned mid-forehead and just above the ears.

  3. 3

    Measure in centimetres or inches

  4. 4

    Find your size on the hat size chart

Fitting for 'Hard Hats'

For those wanting a 'hard hat' (cokes/bowlers, riding hats and top hats), we advise you visit the Lock shop for a complimentary one-on-one appointment to professionally measure your head. Using a conformateur our master hatters will take the shape of your head and then use a series of centuries-old hatting techniques to create a hat that is truly tailored to your specifications.

Hat Size Chart

  • EU size (cm)
  • US size
  • UK size
  • Inches
  • Men’s Hats
  • Women’s Hats
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 65/8
  • 63/4¾
  • 67/8
  • 7
  • 71/8
  • 71/4¼
  • 73/8
  • 71/2½
  • 75/8
  • 73/4¾
  • 77/8
  • 8
  • 81/8
  • 61/2½
  • 65/8
  • 63/4¾
  • 67/8
  • 7
  • 71/8
  • 71/4¼
  • 73/8
  • 71/2½
  • 75/8
  • 73/4¾
  • 77/8
  • 8
  • 207/8
  • 211/4¼
  • 215/8
  • 22
  • 221/2½
  • 227/8
  • 231/4¼
  • 235/8
  • 24
  • 241/2½
  • 247/8
  • 251/4¼
  • 255/8
  • Small
  • Medium
  • Large
  • X-Large
  • XX-Large
  • Small
  • Medium
  • Large
  •  
  •  
  • S/M
  • M/L
  •  

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