What size hat am I? If this question has been wondering around your head for some time now, our hat size calculator may offer you the perfect answer. ๐ŸŽฉ

Computing children's, women's, and men's hat sizes with our calculator will take you less time than it did to read this sentence - it's just that simple!

Follow the article below to discover hat size conversion charts and your hat sizes in inches - using both the American & British versions. ๐Ÿ‘’

How to calculate your hat size?

In order to discover your hat size, you need to take measurement the circumference of your head and use one of the hat size charts. Be careful! American sizes are usually greater than British ones.

  • Range of international sizes: XS-S-M-L-XL-XXL-XXXL;
  • Range of American sizes: 6 1/2 - 8 1/8; and
  • Range of British sizes: 6 3/8 - 7 7/8.

๐Ÿงข International sizes for children are based on their age.

This may have left you wondering - hat size vs. circumference - how are they related? Move on to the next section of the text to find out!

How to measure head for hat?

Hat sizes are based on head circumference. To measure it correctly, you need to find the part that protrudes the most at the back of your head and connect it to the most protruding part of your forehead with a line that goes approximately 0.4-0.8 in (1 - 2 cm) above your ears.

๐Ÿ’ก 7 3/4 hat size doesn't equal the 7 3/4 inch head circumference.

Looking for the tiniest of hats? ๐Ÿ‘ถ Go ahead and check your baby's head circumference percentile.

How to use the hat size calculator?

Wondering what's the 24-inch hat size? Search no more!

Enter you head circumference into our hat size calculator and obtain your results immediately - you may choose from 6 different length units, including both metric and imperial system.

Have you already found your hat size? How about checking out our other clothing tools:

Shoe size ๐Ÿ‘ž | Jacket size ๐Ÿงฅ| Jeans size ๐Ÿ‘–
Circle shirt ๐Ÿ‘— | Bra size ๐Ÿ‘™ | Ring size ๐Ÿ’
Tablecloth size ๐Ÿฝ๏ธ

Hat size charts in inches and centimeters

While international size charts tend to be rather straightforward, hat sizes still might be confusing - especially when it comes to American and British measurements. Both UK and US hat sizes use inches in different standards.

Using the charts below, you can find answers to the following questions, and many, many more:

  • What hat size is a large/ medium/ small? ๐ŸŽ“
  • What hat size is 24 in? โ›‘๏ธ
  • What is hat size large in inches? ๐Ÿ‘‘

Adults hat size chart
Head circumferenceInternational sizeUS sizeUK size
20.5 in/ 52 cmXS6 1/26 3/8
20.9 in/ 53 cmXS6 5/86 1/2
21.3 in/ 54 cmS6 3/46 5/8
21.7 in/ 55 cmS6 7/86 3/4
22 in/ 56 cmM76 7/8
22.4 in/ 57 cmM7 1/87
22.8 in/ 58 cmL7 1/47 1/8
23.2 in/ 59 cmL7 3/87 1/4
23.6 in/ 60 cmXL7 1/27 3/8
24 in/ 61 cmXL7 5/87 1/2
24.4 in/ 62 cmXXL7 3/47 5/8
24.8 in/ 63 cmXXL87 3/4
25.2 in/ 64 cmXXXL8 1/87 7/8

Children hat size chart

Head circumferenceAgeUS sizeUK size
15.7 in/ 40 cm0-6 months54 7/8
16.5 in/ 42 cm0-6 months5 1/45 1/8
17.3 in/ 44 cm6-12 months5 1/25 3/8
18.1 in/ 46 cm6-12 months5 3/45 5/8
18.9 in/ 48 cm12-24 months65 7/8
19.7 in/ 50 cm24-48 months6 1/46 1/8
20.5 in/ 52 cm4-8 years6 1/26 3/8
21.3 in/ 54 cm4-8 years6 3/46 5/8
ลucja Zaborowska