international size chart
Hat Size Chart
| Size | Head Circumference | U.S. Hat Size | U.K. Hat Size |
|---|---|---|---|
| Small | 21 1/8" - 21 1/2" | 6 3/4" - 6 7/8" | 6 5/8" - 6 3/4" |
| 54 CM - 55 CM | 17.1 CM - 17.5 CM | 16.8 CM - 17.1 CM | |
| Medium | 21 7/8" - 22 1/4" | 7" - 7 1/8" | 6 7/8" - 7" |
| 56 CM - 57 CM | 17.8 CM - 18.1 CM | 17.5 CM - 17.8 CM | |
| Large | 22 5/8" - 23" | 7 1/4" - 7 3/8" | 7 1/8" - 7 1/4" |
| 58 CM - 59 CM | 18.4 CM - 18.7 CM | 18.1 CM - 18.4 CM | |
| X-Large | 23 1/2" - 23 7/8" | 7 1/2" - 7 5/8" | 7 3/8" - 7 1/2" |
| 60 CM - 61 CM | 19 CM - 19.4 CM | 18.7 CM - 19 CM | |
| XX-Large | 24 1/4" - 24 5/8" | 7 3/4" - 7 7/8" | 7 5/8" - 7 3/4" |
| 62 CM - 63 CM | 19.7 CM - 20 CM | 19.4 CM - 19.7 CM | |
| XXX-Large | 25" - 25 1/2" | 8" - 8 1/8" | 7 7/8" - 8" |
| 64 CM - 65 CM | 20.3 CM - 20.6 CM | 20 CM - 20.3 CM | |
| Hat Size Chart Maker : iSizeChart.com | |||
About Hat Size Guide Chart
How to measure your head for a hat ?
1. Use a Flexible Measuring Tape – Wrap it around your head just above your eyebrows and ears (about 1 cm above where your hat would sit).
2. Check the Measurement – Record the circumference in inches or centimeters.
3. Refer to the Size Chart – Match your measurement to the corresponding hat size.
Additional Tips:
If you're between sizes, round up for a looser fit or choose the larger size for adjustable hats (like snapbacks or strapbacks).
Common questions about hat size.
1. What's the Average Hat Size for Men and Women?
The average head circumference for adults falls between 53 centimeters and 58 centimeters.
A man's hat size will be approximately 59 centimeters, while a woman's average hat size will be 57 centimeters.
Remember that an average is a number derived from small, medium, and extensive measurements. It does not reflect the size of the entire population nor account for the variations in fit and feels among different hats.
2. What if I Can't Find My Hat Size?
Most men and women fall somewhere on the hat sizing chart. If you're getting a number that seems off, first make sure your tape measure is correct and isn't twisted. Try measuring again.
If your head is significantly larger or smaller, try different manufacturers and styles of hats. Some may fit better, even if you're an atypical size.
About Hat Size Guide Chart
Finding the right hat size ensures comfort and proper fit. Hat sizing is based on head circumference, and understanding how to measure correctly is essential for buying hats online or in stores.
How to Measure Your Head for a Hat
Use a flexible measuring tape and wrap it around your head about 1/8 inch (3mm) above your ears and across the middle of your forehead - this is where most hats sit. The tape should be level all the way around. Measure in both inches and centimeters for accuracy. If you don't have a measuring tape, use a string and then measure the string with a ruler.
International Hat Size Systems
US/UK Sizes: Based on head circumference in inches. Common sizes range from 6 5/8 (small, 20.75") to 7 7/8 (extra large, 24.75"). Most men wear sizes 7 to 7 1/2.
EU Sizes: Based on head circumference in centimeters. Common sizes range from 53 (small) to 63 (extra large). EU size = head circumference in cm.
Letter Sizes: S (53-55cm), M (55-57cm), L (57-59cm), XL (59-61cm), XXL (61-63cm). Most common for casual hats like baseball caps.
Hat Fit Types
Fitted Hats: No adjustment mechanism. Must be purchased in your exact size. Common in baseball caps and formal hats. Most comfortable when sized correctly.
Snapback Hats: Adjustable plastic snap closure at the back. One size fits most adults (sizes 6 7/8 to 7 1/2). Popular in streetwear and casual fashion.
Stretch Fit Hats: Made with elastic material that stretches to fit. Comfortable but may lose shape over time. Good for athletic activities.
Adjustable Strap: Leather or fabric strap with buckle or Velcro. Allows fine-tuning of fit. Common in baseball caps and sun hats.
Frequently Asked Questions
What if my measurement falls between two sizes?
Choose the larger size. A slightly loose hat is more comfortable than one that is too tight and causes headaches. You can add hat sizing tape to make a large hat fit smaller.
Do hat sizes change over time?
Head size can change slightly with weight fluctuations. Re-measure if you notice your hats feeling tighter or looser than before. Most adults' head size remains stable after age 21.