Les

December 31st, 2009, 08:38 AM

I've been thinking too much lately about different techniques for measuring hair length and came up with one that I thought y'all might find interesting. I'm probably not the first to propose this alternate method, but I wasn't able to find any references to it elsewhere. I devised this to try and come up with a metric to describe how long someone's hair appeared regardless of their height.

First a warning: math content ahead. Nothing more than division, subtraction (and if you're lucky enough to have super-long hair, negative numbers). If math and you don't agree, consider yourself warned.

To do the calculation you need to know your height and the distance from the ground to the hemline of your hair. This second number will be negative if you have longer-than-floor-length-hair, representing the amount of hair you have past floor length. These measurements can be in any units you want (inches, cm, etc..) provided both are in the same units - in the calculation the units cancel out. Once you have those:

(height - floor_hair_distance) / height

The number essentially expresses what percentage of your height your hair makes up. Bald = 0 and floor length = 1, numbers greater than 1 indicate beyond floor-length hair. It scales independent to height - two similarly proportioned people with BSL hair will have the same number regardless of vast differences in height (and hair length).

I'm 6'2" tall and my hair is 45" off the floor, so... (74-45)/74 = .39 (or 39%), classic on me would be 33.5" off the floor (74-33.5)/74 = .55 (or 55%).

What's your number?

First a warning: math content ahead. Nothing more than division, subtraction (and if you're lucky enough to have super-long hair, negative numbers). If math and you don't agree, consider yourself warned.

To do the calculation you need to know your height and the distance from the ground to the hemline of your hair. This second number will be negative if you have longer-than-floor-length-hair, representing the amount of hair you have past floor length. These measurements can be in any units you want (inches, cm, etc..) provided both are in the same units - in the calculation the units cancel out. Once you have those:

(height - floor_hair_distance) / height

The number essentially expresses what percentage of your height your hair makes up. Bald = 0 and floor length = 1, numbers greater than 1 indicate beyond floor-length hair. It scales independent to height - two similarly proportioned people with BSL hair will have the same number regardless of vast differences in height (and hair length).

I'm 6'2" tall and my hair is 45" off the floor, so... (74-45)/74 = .39 (or 39%), classic on me would be 33.5" off the floor (74-33.5)/74 = .55 (or 55%).

What's your number?