Hats come in various shapes and sizes, and it is essential to find the right fit for your head. Finding the right-sized hat can be challenging, especially when shopping online, where you cannot try it on.
To help make the process of purchasing a hat easier, we have put together a hat size chart that provides a reference for head circumference and the corresponding hat size.
Whether you’re shopping for a fitted cap or an easy-fit hat, our chart covers a range of sizes for both adult’s and children’s hats, making it easier for you to find your perfect fit.
International size conversion chart for adult hats
Let’s look at the different types of hat sizes and how they compare with the head circumference measurements
Easy Fit and Fitted hat size conversion chart for adults
Below we have two sizes, “Easy Fit” and “Fitted“. They’re paired with their head circumference measurement in inches and centimeters below.
|Easy Fit Size||Fitted||Inches||Centimeters|
|Small (S)||6 3/4||21 1/4||54|
|Small (S)||6 7/8||21 5/8||55|
|Medium (M)||7-1/8||22 3/8||56.8|
|Large (L)||7-1/4||22 3/4||57.8|
|Large (L)||7 3/8||23 1/8||58.7|
|XL||7 1/2||23 1/2||59.7|
|XL||7 5/8||23 7/8||60.6|
|XXL||7 3/4||24 1/4||61.6|
|XXL||7 7/8||24 1/4||62.5|
Here’s a quick list of head measurements in inches along with the corresponding easy-fit sizes for adult hats:
- 21 1/4 inch – Go for a small (S) easy-fit size
- 21 5/8 inch – Go for a small (S) easy-fit size
- 22 inch – Go for a medium (M) easy-fit size
- 22 3/8 inch – Go for a medium (M) easy-fit size
- 22 3/4 inch – Go for a large (L) easy-fit size
- 23 1/8 inch – Go for a large (L) easy-fit size
- 23 1/2 inch – Go for an extra-large (XL) easy-fit size
- 23 7/8 inch – Go for an extra-large (XL) easy-fit size
- 24 1/4 inch – Go for an extra-extra-large (XXL) easy-fit size
- 24 5/8 inch – Go for an extra-extra-large (XXL) easy-fit size
- 25 inch – Go for an extra-extra-large (XXL) easy-fit size
Sized stretch fit hat size conversion chart for adults
Here, we’re now pairing up the Stretch Fit size with it’s corresponding head circumference measurement in inches and centimeters.
|Stretch Fit Size||Inches||Centimeters|
|Small/Medium (S/M)||21 1/4||54|
|Small/Medium (S/M)||21 5/8||55|
|Medium/Large (M/L)||22 3/8||56.8|
|Medium/Large (M/L)||22 3/4||57.8|
|Medium/Large (M/L)||23 1/8||58.7|
|Large/XL (L/XL)||23 1/2||59.7|
|Large/XL (L/XL)||23 7/8||60.6|
|Large/XL (L/XL)||24 1/4||61.6|
|Large/XL (L/XL)||24 1/4||62.5|
|Large/XL (L/XL)||24 1/4||63.5|
Easy Fit, Fitted, and Stretch Fit size chart for Hats
Let’s now look at how the easy fit, fitted, and stretched fit sizes come together.
|Easy Fit Size||Fitted||Stretch Fit|
|Small (S)||6 3/4||Small/Medium (S/M)|
|Small (S)||6 7/8||Small/Medium (S/M)|
|Medium (M)||7||Small/Medium (S/M)|
|Medium (M)||7-1/8||Medium/Large (M/L)|
|Large (L)||7-1/4||Medium/Large (M/L)|
|Large (L)||7 3/8||Medium/Large (M/L)|
|XL||7 1/2||Large/XL (L/XL)|
|XL||7 5/8||Large/XL (L/XL)|
|XXL||7 3/4||Large/XL (L/XL)|
|XXL||7 7/8||Large/XL (L/XL)|
International size conversion chart for children’s hats
Since kids grow really quickly, it’s generally better to go with Easy Fitted sizes as the hats can last longer. Here’s a table of the child’s head circumference in inches and centimeters paired with children’s hat sizes in Fitted, Easy Fitted, and Stretch Fitted sizing.
|Inches||Centimeters||Fitted||Easy Fitted||Stretch Fitted||Kids|
|19 3/8||49.2||6 1/8||S||Infant/Toddler|
|19 3/4||50.2||6 1/4||S||S/M||Toddler|
|20 1/8||51||6 3/8||M||S/M||Toddler/Child|
|20 1/2||52||6 1/2||M||S/M||Child|
|20 7/8||53||6 5/8||L||L/X||Child/Youth|
|21 1/4||54||6 3/4||L||L/X||Youth|
|21 5/8||55||6 7/8||XL||L/X||Youth|
Children’s Age and Hat Measurements
Here’s a simple list of approximate hat size measurements based on the age of the child. Children, both boys, and girls grow to similar sizes until they reach their teenage years. So the below sizes are applicable to all genders.
- 0 to 6 months – 16.50 inches
- 6 to 12 months – 17.50 inches
- 12 to 18 months – 18.50 inches
- 18 to 36 months – 19.50 inches
- 3 to 5 years old – 20.50 inches
- 6 to 8 years old – 21.50 inches
- 8 to 10 years old – 22.50 inches
Tips for finding perfect-fitting hats
- Try on different styles: Different styles of hats may fit differently, so it’s a good idea to try on a few different styles to see which one fits best. Some styles, like baseball caps, tend to fit tighter, while others, like bucket hats, may fit more loosely.
- Look for hat brands that offer half sizes: Some hat brands offer half sizes, which can be helpful if you’re between standard sizes. This can ensure a better, more comfortable fit.
- Check the depth of the hat: If you have a high forehead, you may want to look for a hat with a deeper crown, which will provide more coverage. On the other hand, if you have a low forehead, you may want to choose a hat with a shallower crown.
- Pay attention to material: Hats made from stretchy materials may fit more comfortably, while those made from stiffer materials may require a bit of breaking in before they feel comfortable.
- Take into account any hair considerations: If you have long hair, you may want to choose a hat with a larger opening, so your hair won’t get tangled in the hat. If you have a lot of volume in your hair, you may want to choose a hat with a larger interior, so your hair doesn’t cause the hat to feel tight or uncomfortable.
How to use size conversion charts?
Size conversion charts are used to convert measurements between different measurement systems, typically between inches and centimeters, or between different sizes within a single measurement system, such as hat sizes. The charts usually include a set of standard sizes and their equivalent measurements in the other system.
To use a size conversion chart, follow these steps:
- First, determine your head measurement. In this case, you’ll need to measure your head circumference in inches or centimeters.
- Once you have your measurement, locate it on the size conversion chart. The chart should have columns for different measurements and rows for the corresponding sizes.
- Once you find your measurement under the inches or centimeters column, look for the hat size under the appropriate size column in the same row.
- If you need to convert between more than two systems, simply repeat the process of locating the initial size on the international size chart, and find the equivalent size under the size column. For example, if you want to find the Easy Fit size from the Fitted size, find the fitted size you’re looking for and in the same row under Easy Fit column, check what size is shown.
How to measure yourself for a hat?
Here’s how to measure yourself for a hat:
- Get a flexible measuring tape: Wrap a soft measuring tape around your head, starting just above your eyebrows and extending around the back of your head, above your ears. Make sure the tape is level and snug, but not too tight.
- Measure the head circumference: Take note of the measurement in centimeters or inches. This is the circumference of your head, which is the most important measurement for determining hat size.
- Compare to hat size charts: Most hat manufacturers provide hat size charts that list head circumferences and corresponding hat sizes. Compare your head measurement to the chart to determine your hat size.
If you can’t find the right size information on the brand’s website, you can always refer to the international hat size conversion charts above for more information.
Also, if you have a hard time reaching the right folks through your DTC marketing efforts, you can always reach out to a marketing agency to help you grow faster.
FAQs for hat size conversion
What size is a 54cm hat?
For a 54cm head circumference, a fitted hat of size 6 3/4 or Easy Fit size Small (S) would be appropriate.
What size hat is a 55cm hat?
For a 55cm head circumference, a fitted hat of size 6 7/8 or Easy Fit size Small (S) would be appropriate.
What size hat is a 55.9cm hat?
For a 55.9cm or 22inch head circumference, a fitted hat size of 7 or Easy Fit size Medium (M) would be appropriate
What is the hat size for a 56.8cm head circumference?
For a 56.8cm head circumference, a fitted hat size of 7-1/8 or Easy Fit size Medium (M) would be appropriate.
What size hat is a 57.8cm head circumference?
For a 57.8cm head circumference, a fitted hat size of 7-1/4 or Easy Fit size Large (L) would be appropriate.
What size hat is a 58.7cm head circumference?
For a 58.7cm head circumference, a fitted hat size of 7 3/8 or Easy Fit size Large (L) would be appropriate.
What is the hat size for a 59.7cm head circumference?
For a 59.7cm head circumference, a fitted hat size of 7 1/2 or Easy Fit size XL would be appropriate.
What is the hat size for a 60.6cm head circumference?
For a 60.6cm head circumference, a fitted hat size of 7 5/8 or Easy Fit size XL would be appropriate.
What is the hat size for a 61.6cm head circumference?
For a 61.6cm head circumference, a fitted hat size of 7 3/4 or Easy Fit size XXL would be appropriate.
What is the hat size for a 62.5cm head circumference?
For a 62.5cm head circumference, a fitted hat size of 7 7/8 or Easy Fit size XXL would be appropriate.
What is the hat size for a 63.5cm head circumference?
For a 63.5cm head circumference, a fitted hat size of 8 or Easy Fit size XXL would be appropriate.
What size is a medium hat?
A medium hat usually has a head circumference of 55.9cm or 22 inches. Medium hats have a fitted size of 7.
What size is a large hat?
A large hat usually has a head circumference of 57.8cm or 22 3/4 inches. Large hats have a fitted size of 7 1/4.
What size is an XL hat?
An XL hat usually has a head circumference of 59.7cm or 23 1/2 inches. XL hats have a fitted size of 7 1/2.
What size is an XXL hat?
An XXL hat usually has a head circumference of 61.6cm to 63.5cm or 24 1/4 inches to 25 inches. XXL hats have a fitted size of 7 3/4 to 8.
How do I measure my head for a hat?
To measure your head for a hat, wrap a measuring tape around your head, about an inch above your eyebrows and ears. Make sure the tape is snug but not too tight. Take the measurement in both inches and centimeters for the best accuracy.
What if my head measurement falls between hat sizes?
If your head measurement falls between hat sizes, it’s best to choose the larger size for comfort. You can also opt for an adjustable hat or a hat with an elastic band for a better fit.
Can hat sizes vary between brands?
Yes, hat sizes can vary between brands. It’s always best to refer to the specific brand’s sizing chart before making a purchase.
What is an Easy Fit hat?
An Easy Fit hat is a hat that has a bit of give or stretch, providing a comfortable fit for a range of head sizes. This type of hat is usually labeled as “Easy Fit” or “One Size Fits Most”.
Is it better to buy a fitted hat or an Easy Fit hat?
The choice between a fitted hat and an Easy Fit hat depends on personal preference. Fitted hats provide a more secure and snug fit for a specific head size, while Easy Fit hats are more versatile and can accommodate a range of head sizes.
How can I clean my hat?
The method of cleaning a hat will depend on the type of hat and the material it’s made of. Some hats can only be gently spot-cleaned with a damp cloth, while others can be machine washed on a delicate cycle. Always refer to the care label for specific instructions.
Can I iron my hat?
Ironing a hat is not recommended as heat can damage the material and cause the hat to lose its shape. If you need to remove wrinkles from your hat, try steaming it or using a fabric freshener spray.
Your customers deserve the perfect hat, every time
Having a proper hat size chart is essential for customers to find the right fit for their heads. Image size charts can be confusing and may result in returns, which can harm your store’s reputation and customer satisfaction. You need an interactive hat size chart that makes it easy for customers to find their sizes.
With an AI size recommender, customers can simply answer a few questions about their preferences and Kiwi’s size charts will recommend the most appropriate size for your customers —thus eliminating the need for manual measurement.
Take the necessary step to ensure your customers receive the perfect fit for their hat and reduce returns, leading to an increase in customer satisfaction. Upgrade your store’s hat size chart today and experience the difference for yourself.