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MattS

A quick primer on hat sizes, US and Metric

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I thought I would post this because I see online auctions all the time where a seller has a hat/cap/beret etc. and doesn't know the size so they lay a tape measure on it and say it "is about 7 inches across". Of course, hats are not rigid and flex and bend so measuring it in this way is pointless. Hat sizes are determined by the circumference around the sweatband (part of the hat that actually comes in contact with the wearer) or opening. In US sizes, this is the circumference in inches divided by Pi (3.14), in Metric sizes it is the opening circumference in centimeters. To convert, multiply the US size by 8 to get the Metric size. For example, my noggin all the way around just above the ears measures about 22 3/4 inches. Divided by 3.14 is 7.25 and that multiplied by 8 is 58. Therefore my hat size is 7 1/4 or 58. This is a handy chart, notice to go from Metric to US just divide by 8 (which is Pi times centimeters per inch, or 3.14 x 2.54=7.9756).

 

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+1, thanks!


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Specific areas of collecting and buying interest:

WWI/WWII 40th (Sunshine) Division, Camp Kearny, Camp Harry Jones, WWI/WWII 158th Infantry, USS Oklahoma, USS Swordfish (SS-193), Pearl Harbor Survivors Association, Mexican Border (1916),

Norman Air Technical Training Center (NATTC) Norman, OK, Tinker Field or AFB, Submariner Items, Knives, Bayonets, Sweetheart Jewelry, other unique

or odd items with interesting stories.

 

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Very Helpful tool.

 

Thank you.


Collector of WWI US Navy "Donald Duck" Caps and Hat Tallies - Looking for Tallies from the USS Carp & USS Chauncey

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