Hat Size Chart
The Hat Size Chart is a sizing reference tool covering hat size chart, hat sizing chart, hat size chart inches, hat sizes chart. Use the chart below to look up values instantly. Printable and downloadable versions are available on this page.
Hat Size Finder
Enter your head circumference in cm or inches to get your hat size in US, UK and EU sizing.
Hat Size Chart — US, UK, and EU Conversion
| US Hat Size | UK Hat Size | EU Size (cm) | Head Circumference (inches) | Head Circumference (cm) | Size Label |
|---|---|---|---|---|---|
| 6⅝ | 6⅝ | 53 | 20¾ in | 52.7 cm | XS |
| 6¾ | 6¾ | 54 | 21⅛ in | 53.7 cm | S |
| 6⅞ | 6⅞ | 55 | 21½ in | 54.6 cm | S |
| 7 | 7 | 56 | 21⅞ in | 55.6 cm | M |
| 7⅛ | 7⅛ | 57 | 22¼ in | 56.5 cm | M |
| 7¼ | 7¼ | 58 | 22⅝ in | 57.5 cm | L |
| 7⅜ | 7⅜ | 59 | 23 in | 58.4 cm | L |
| 7½ | 7½ | 60 | 23½ in | 59.4 cm | XL |
| 7⅝ | 7⅝ | 61 | 23⅞ in | 60.3 cm | XL |
| 7¾ | 7¾ | 62 | 24¼ in | 61.3 cm | XXL |
| 7⅞ | 7⅞ | 63 | 24⅝ in | 62.2 cm | XXL |
| 8 | 8 | 64 | 25 in | 63.5 cm | 3XL |
Source: Hat industry standard sizing conventions — see Britannica: Hat and ISO 6220 headwear sizing standard
How to Measure Your Head for a Hat
- Use a flexible cloth tape measure or strip of paper. If using paper also have a ruler available.
- Wrap the tape measure around the widest part of your head — approximately 1 inch above your eyebrows, over your ears, and around the back at the fullest point. Keep the tape horizontal and level all the way around.
- Keep the tape snug but not tight — it should sit comfortably without compressing. Read the measurement in centimetres.
- Match your measurement to the EU circumference column in the chart above to find your hat size. For US fractional sizes, also check the US column.
Hat Size by Style
| Hat Style | Sizing Method | Fit Notes |
|---|---|---|
| Fitted baseball cap | Sized by hat size number (6⅝ to 8) | Order exact size from the conversion chart above. |
| Snapback baseball cap | One size fits most — adjustable back | Fits head circumference approximately 54 to 62 cm. |
| Beanie or knit hat | One size or S/M/L | Stretches to fit — use circumference chart to select size label. |
| Fedora or structured hat | Sized by hat size | Structured brims require precise sizing — measure carefully. |
| Cowboy hat | Sized by hat size | High-crown hats especially benefit from exact sizing for proper break over the brow. |
| Bucket hat | S/M/L/XL | Use circumference chart to match size label. |
| Beret | One size (most) | Most berets fit circumference 56 to 60 cm. |
Hat Size Finder
Enter your head circumference in centimetres or inches to instantly find your hat size across US, UK, EU and size label systems.
Frequently Asked Questions
How do I measure my hat size at home?
Wrap a flexible tape measure around your head approximately 1 inch above your eyebrows and ears, around the back at the fullest point. Your measurement in cm is your EU hat size — find the corresponding US or UK size in the conversion chart above.
What is the average hat size for men?
The average US hat size for men is 7¼ to 7⅜ — corresponding to a 57 to 59 cm head circumference. This falls in the medium to large range.
What is the average hat size for women?
The average US hat size for women is 6⅞ to 7⅛ — corresponding to a 55 to 57 cm head circumference. This is typically a small to medium hat size.
What does one size fits most mean for hats?
One size fits most hats use an adjustable strap, elastic band, or stretch material to fit head circumferences of approximately 54 to 62 cm. They do not fit very small heads (below 53 cm) or very large heads (above 63 cm) well.
Are US and UK hat sizes the same?
Yes — US and UK hat sizes use the same numerical scale expressed in fractions of inches. A US size 7¼ is equivalent to a UK 7¼ — the numbers are identical between the two systems.
What is a 7½ hat size in cm?
US hat size 7½ corresponds to an EU size of 60 cm head circumference. It is classified as an XL size and fits a head circumference of approximately 59.4 to 60.3 cm.
Can you shrink a hat that is too large?
Structured hats like wool fedoras and baseball caps can be slightly shrunk by dampening the inside of the sweatband and allowing it to dry on your head. For a more reliable fit adjustment use hat size reducer foam tape inside the band.
What hat size is 58 cm?
A 58 cm head circumference is EU hat size 58, US size 7¼, UK size 7¼ — classified as a Large.