I was thinking about whether I'd rather gain a half inch in girth or a half inch in length, and decided to do some calculations, assuming a uniform circumference (not as troublesome as you might assume considering base girth is usually bigger than mid-shaft girth (what most people use), making up for some inconsistency/thinning above mid shaft).
A lot of you may be overwhelmed by the amount of equations/numbers in this post. To help that, I've bolded the important numbers.
Volume of a Cylinder: V = pi*r^2*h
Circumference (or girth): C = 2*pi*r or, rearranged, r = C/(2*pi)
Therefore: V = pi*(C/(2*pi))^2*h or, simplified, V = C^2/(4*pi)*h
So, with my size, a length (or h) of 6.75" and a girth (or C) of 5.75": V = (5.75)^2/(4*pi)*6.75 = 17.76 cubic inches
Length of 7.25" and girth of 5.75": V = (5.75)^2/(4*pi)*7.25 = 19.07 cubic inches
Length of 6.75" and girth of 6.25": V = (6.25)^2/(4*pi)*6.75 = 20.98 cubic inches
Now some of you may be saying, Hey, but a half inch increase in girth is proportionally greater than a half inch increase in length, given that generally girth is less than length (e.g. .5/6.75 = 7.4% but .5/5.75 = 8.7%). However correcting for this, and instead using a 10% increase (length of 7.425" or girth of 6.325") still shows us that girth is more important:
Length of 7.425" and girth of 5.75": V = (5.75)^2/(4*pi)*7.425 = 19.54 cubic inches
Length of 6.75" and girth of 6.325": V = (6.325)^2/(4*pi)*6.75 = 21.49 cubic inches
So as you can see, girth is more important in terms of total size than length.
Some further examples that illustrate this:
Length of 8" and girth of 5.5": V = (5.5)^2/(4*pi)*8 = 19.26 cubic inches
Length of 7" and girth of 6": V = (6)^2/(4*pi)*7 = 20.05 cubic inches
Length of 6" and girth of 6.5": V = (6.5)^2/(4*pi)*6 = 20.17 cubic inches
So, in conclusion, hats off to the girthy guys. And the opposite (hats on?) for those who only consider the length number when evaluating size.
And to the rare guys who are elite in length and girth, well you're just fucking huge.
A lot of you may be overwhelmed by the amount of equations/numbers in this post. To help that, I've bolded the important numbers.
Volume of a Cylinder: V = pi*r^2*h
Circumference (or girth): C = 2*pi*r or, rearranged, r = C/(2*pi)
Therefore: V = pi*(C/(2*pi))^2*h or, simplified, V = C^2/(4*pi)*h
So, with my size, a length (or h) of 6.75" and a girth (or C) of 5.75": V = (5.75)^2/(4*pi)*6.75 = 17.76 cubic inches
Length of 7.25" and girth of 5.75": V = (5.75)^2/(4*pi)*7.25 = 19.07 cubic inches
Length of 6.75" and girth of 6.25": V = (6.25)^2/(4*pi)*6.75 = 20.98 cubic inches
Now some of you may be saying, Hey, but a half inch increase in girth is proportionally greater than a half inch increase in length, given that generally girth is less than length (e.g. .5/6.75 = 7.4% but .5/5.75 = 8.7%). However correcting for this, and instead using a 10% increase (length of 7.425" or girth of 6.325") still shows us that girth is more important:
Length of 7.425" and girth of 5.75": V = (5.75)^2/(4*pi)*7.425 = 19.54 cubic inches
Length of 6.75" and girth of 6.325": V = (6.325)^2/(4*pi)*6.75 = 21.49 cubic inches
So as you can see, girth is more important in terms of total size than length.
Some further examples that illustrate this:
Length of 8" and girth of 5.5": V = (5.5)^2/(4*pi)*8 = 19.26 cubic inches
Length of 7" and girth of 6": V = (6)^2/(4*pi)*7 = 20.05 cubic inches
Length of 6" and girth of 6.5": V = (6.5)^2/(4*pi)*6 = 20.17 cubic inches
So, in conclusion, hats off to the girthy guys. And the opposite (hats on?) for those who only consider the length number when evaluating size.
And to the rare guys who are elite in length and girth, well you're just fucking huge.