Utility Loft ā Hat Size ā Chart
Hat Size Chart
Every hat sizing system side by side ā US, UK, EU, and S/M/L ā matched to head circumference in centimeters and inches. Measure your head and find the row, or use the converter.
Enter your head circumference above to see your hat size in every standard.
Head circumference to hat size
| Circumference (cm) | Inches | US | UK | EU | S / M / L |
|---|---|---|---|---|---|
| 53.9 | 21.2 | 6Ā¾ | 6ā | 54 | XS |
| 54.9 | 21.6 | 6ā | 6Ā¾ | 55 | S |
| 55.9 | 22.0 | 7 | 6ā | 56 | S |
| 56.9 | 22.4 | 7ā | 7 | 57 | M |
| 57.9 | 22.8 | 7Ā¼ | 7ā | 58 | M |
| 58.9 | 23.2 | 7ā | 7Ā¼ | 59 | L |
| 59.8 | 23.6 | 7Ā½ | 7ā | 60 | L |
| 60.8 | 24.0 | 7ā | 7Ā½ | 61 | XL |
| 61.8 | 24.3 | 7Ā¾ | 7ā | 62 | XL |
| 62.8 | 24.7 | 7ā | 7Ā¾ | 63 | XXL |
| 63.8 | 25.1 | 8 | 7ā | 64 | XXL |
US size = circumference Ć· Ļ (head diameter in inches). EU size = circumference in cm. Approximate; brands vary.
Related
Frequently asked questions
What hat size is a 57 cm head?
A 57 cm head circumference is an EU 57, a US 7ā , a UK 7, and an alpha size M.
What is a size 7 hat in cm?
A US size 7 hat fits a head circumference of about 56 cm (22 inches), which is an EU 56 and roughly a size S.
Are hat sizes unisex?
Hat sizing is based on head circumference, so the numbers are unisex ā a 58 cm head is the same size whether labeled for men or women. Men's heads average slightly larger, so men's ranges skew toward LāXL and women's toward SāM, but the chart is the same.