cinoric: I'm going to call this entire enterprise into question.
The volume of a cylinder: length * pi radius^2.
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Girth, in this case, refers to circumferance: 2 * radius * pi
Solve in terms of radius: radius = girth/2pi
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Therefore the volume of a cylindrical penis is: length * pi * (girth/2pi)^2
or
(length * (girth^2)) / 4pi
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Assuming we want larger penises to have larger numbers, the ratio should be penile-volume:height SO
(length * (girth^2)) / (4pi * height)
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I cannot figure out the mathematical logic behind the previously listed formula.
First, it completely devalues girth by dividing it by pi and then taking the square root of that quotient.
A modest girth of five inches: sqrt(5/3.14) =
1.25
A staggeringly massive girth of twelve inches: sqrt(12/3.14) =
1.95
A difference of .7 in the final product.
Second, it massively overstates length by doubling it and then multiplying it by pi.
A modest length of five and a half inches: 5.5*2*3.14 =
34.5
An equally modest length of six inches: 6*2*3.14 =
37.7
A difference of 3.2 in the final product.
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Thus, assume two men each 5'11 (71 inches).
One has a penis 8 inches long and 8 inches in girth. His number by the old formula:
1.13
The other's penis is 9 inches long and 6 inches in girth. His number:
1.10
The first (suspiciously cylindrical) penis has a volume of roughly 40 cubic inches.
The second is only 26 cubic inches in bulk.
.
Length matters, but if you saw these two members next to one another...
...it would be VERY obvious which one was "BIG"ger.
.03 wouldn't do the first man justice..
My volume based formula, however, seems to overstate the point a little... rating the two men at
.56 and
.37 respectively. The average volume/height, on the other hand, a man 5'10(average) with a penis 6.5 inches long and 5 inches in circumference (based on
this rather forgiving online survey), gets the number
.18.
Sadly, this system doesn't really give give height differences as much credit as they're due. Judging the size of a man based only on his height is pretty innacurate anyway. Ideally we'd multiply that by his width at the shoulders to get a slightly more realistic number. Many penises aren't strictly cylindrical either. So it goes.
Critique as you see fit.
This whole thread has gotten very silly.