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Use this Hat Sizing Chart & Guide to Find the Right Sized Hat

Hats look their best when they fit properly. That's why it is so important to find the right hat size before you buy one. Our handy hat size chart and guide will show you exactly how to measure your head to find your hat size. It is easy to do, and ensures a perfect fit so you look your best in your new hat.

How to size for a hatYou can measure hat size by taking a string and wrapping it around your head. Then measure the distance with a ruler. Finally, use the hat size chart below to perform a size conversion. When buying a hat keep in mind that different manufacturers have slightly different types of crowns, and you may want to buy hats slightly larger depending on how you will wear them.

Follow these steps to accurately measure hat size:

Step 1

Wrap the piece of string around the back of your head approximately 1/8" above your ears. Meet the two ends at the center of your forehead just above your eyebrows as shown in the diagram. The string should be comfortably wrapped around your forehead, not too tight and not too loose.

Step 2

Take the string from your head and lay it on the ruler to measure the distance. Round up to the nearest 1/8”. Next, compare the measurement to the hat sizing chart below to find the corresponding size.

For example, we measured 22 inches. Using the hat size chart, we can see our general hat size is Medium and the fitted size is 7 – 7 1/8.

Please Note: Not all hats will fit the same. Hat sizing is not a perfect science. Many factors affect the fit of a hat such as manufacturer, material and even your hairstyle. This chart is a helpful guide and an approximation of size.

There are different types of hat sizes. Fitted hat or specific sizes use numbers like 7 – 7 1/8. General hat sizes use words; Small, Medium, Large and X-Large. Match yours to the type of hat you plan to buy.

Information for first time hat buyers:

Hat Size Chart

Head Circumference
Adult Hat Size
Inches Centimeters
Easy Fit
Sized Stretch Fit
Stretch Fit/Adjustable
21 1/4546 3/4 Small (S) Small/Medium (S/M)  
21 5/8556 7/8  
2255.97Medium (M)
One Size Fits Most
22 3/856.87-1/8Medium/Large (M/L)
22 3/457.87-1/4Large (L)
23 1/858.77 3/8
23 1/259.77 1/2XLLarge/XL (L/XL)
23 7/860.67 5/8 
24 1/461.67 3/4XXL
24 5/862.57 7/8 

Finding the right sized hat is the first step to enhancing your style with a brand new stylish hat! Now, that you know what size hat you need, take a look at our wide selection of designer men's hats and womens hats. Or, shop by style we feature fedora hats, flat caps and newsboys, boater hats, trilby and straw hats plus more.