How To Determine Your Hat Size. (a cloth tape measure such as a seamstress or tailor uses is ideal.) it is usually helpful to have someone help you. This is the best way to take accurate hat size as the information should also include specific instructions about how and where to measure the head.
Measure around your head about 3/4 of an inch above ear where your hat will be worn. Sizes, even though they do vary depending on the hat maker, are technically universal. Usually, these charts will list the measurements in centimeters and inches.
Measure from the back of your head bringing the ends together at the center of your forehead right above your eyebrows.
If your measurement falls between sizes, choose the next largest size. Usually, these charts will list the measurements in centimeters and inches. An average head size for men is size 7 3 ⁄ 8 (using u.s. Learn about hat sizes for men and women.