Things You'll Need:
- String
- Ruler
- Calculator
-
Step 1
Wrap the string around your head where your hat will sit. This will be about 1/8" above your ears. Hold the string where one end meets the rest of the string.
-
Step 2
Lay the string along a ruler, still holding the spot where the string overlapped. Look at the measurement in inches. Most people will have a measurement between 21 1/8 inches to 24 5/8 inches.
-
Step 3
Convert this number into centimeters by multiplying it by 2.54. For instance, if your head is 23 inches around, that is the same as 59 cm (see reference).
-
Step 4
Divide the number in step 3 by 8 to get your hat size. This will likely be a number ranging from 6 3/4 to 7 7/8.
-
Step 5
Convert your hat size into a general size. Refer to a sizing chart or remember that every 1/4 inch is a different size (see resource). Those with sizes less than 7 are small; 7 - 7 1/8 are medium; 7 1/4 - 7 3/8 are large; 7 1/2 - 7 5/8 are extra large; and those with larger sizes are 2X large.











