Measure your head, in inches, just above your ear line, coming across your forehead. Divide the number of inches by pi (3.1415) to determine your U.S. size- 7 1/8 for example. ( 22 1/2" divided by pi = 7.16 or hat size 7 1/8 [ 7.125] plus a little.
If you have a tape in centimeters, simply measure and note the number of centimeters. (The Europeans make it so simple!) In this case the 22 1/2 " head would be a 57. (22.5 x 2.54 cm/inch = 57).
Each centimeter = 1/8 of a head size. so, 7 = 56, 7 1/8 = 57, 7 1/4 = 58 7 3/8 = 59, and so on. |
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