HOW TO MEASURE MY HAT SIZE

How to Measure My Hat Size?

The most practical way to measure your head size is to use a soft measuring tape to measure the circumference of your head. We recommend you measure just slightly above the eyebrow ridge, passing about one finger’s width over the ears, and over the crest of your occipital, at the back of your head. 

The sensation of the tape on your head will mirror the sensation of the sweatband of your hat. Be mindful of not wrapping the tape too tightly around your head, as it might result in a hat that might be too snug for you.

Once you have found the comfortable measure, use our Hat Size Conversion chart below to get a sense of your hat size. Remember that each manufacturer builds their hats differently, and fits vary with a hat or cap’s rigidity features.

Common Hat Size Units

Manufacturers from different parts of the world use different measuring systems to design their hats. Here is an overlook of the main hat sizing systems you may encounter:

• Metric

The metric system is used all-over the world. Sizes in the metric system measure the circumference of the hat’s sweatband, and are usually between 55 cm and 62 cm. 

• Imperial / USCS

These systems use the inch as their base unit of measurement. They are common in the Commonwealth nations and the United States of America. Sizes in the imperial / uscs systems measure the diameter of the hat’s sweatband, from front (forehead) to back (occipital). They are generally between 6 ⅞” and 7 ¾”.

• Letter System

This system is commonly encountered. It represents the hat’s size using the words Small, Medium, Large, Extra Large, etc. There is usually less size variety in the letter system, whereas the metric and imperial/uscs systems offer more precise sizing.