How do you measure up in terms of length, girth, and volume? What is your standard deviation above/below the mean? Post some pictures for proof and do some math. It takes some work, but that's how you know and prove you measure up!
Length is measured bone-press over the top (BPEL = bone-pressed erect length). It's best to use a ruler if you have a straight cock and a tape measure if you have a curved on to get an accurate measurement. I have an upward curve, and a large fat pad because I need to lose weight. Girth is measured at mid-shaft (MSEG = mid-shaft erect girth), and volume is a very rough estimate using the formula for the volume of a cylinder. The formula for volume (using 3.14 for pi) is
Volume = 3.14 x the radius of your cock at mid-shaft squared x bone-press length of your over the top.
My length is 18 cm (7 in.), my mid-shaft girth is 15 cm (5.9 in.), and the mid-shaft radius (one-half of my diameter) is 2.5 cm (0.98 in.). So
Volume = 3.14 x (2.5 x 2.5) x 18 = 353.25 cubic cm.
The BJU International study on penis size (https://bjui-journals.onlinelibrary.wiley.com/doi/10.1111/bju.13010) found that the average erect length is 13.12 cm (5.17 in.), with a standard deviation of 1.66 cm (0.65 in.). The average erect girth is 11.66 cm (4.59 in.), with a standard deviation of 1.10 cm (0.43 in.). Flaccid and stretched numbers are in the abstract. Volume is not in the study, so there's insufficient data to calculate standard deviations for volume. Still, a cock at one standard deviation above the mean, at the mean, and one standard deviation below the mean for length and girth would have volumes of
V = 3.14 x (2.03 x 2.03) x 14.78 = 191.25 cubic cm (radius calculated by dividing the diameter by pi and dividing that number by 2).
V = 3.14 x (1.86 x 1.86) x 13.12 = 142.52 cubic cm.
V =3.14 x (1.68 x 1.68) x 11.46 = 101.56 cubic cm.
The standard deviation is calculated with these formulas in metric (convert to English with the numbers above as needed):
(BPEG - 13.12) / 1.66.
(MSEG - 11.66) / 1.1.
My numbers and pictures:
BPEG: 18 cm
MSEG: 15 cm
(18 - 13.12) / 1.66 = +2.94 standard deviations.
(15 - 11.66) / 1.1 = +3.04 standards deviations.
Volume = 3.14 x (2.5 x 2.5) x 18 = 353.25 cubic cm.
![IMG_1079.JPEG]( "IMG_1079.JPEG")
![IMG_1074.JPEG]( "IMG_1074.JPEG")
Length is measured bone-press over the top (BPEL = bone-pressed erect length). It's best to use a ruler if you have a straight cock and a tape measure if you have a curved on to get an accurate measurement. I have an upward curve, and a large fat pad because I need to lose weight. Girth is measured at mid-shaft (MSEG = mid-shaft erect girth), and volume is a very rough estimate using the formula for the volume of a cylinder. The formula for volume (using 3.14 for pi) is
Volume = 3.14 x the radius of your cock at mid-shaft squared x bone-press length of your over the top.
My length is 18 cm (7 in.), my mid-shaft girth is 15 cm (5.9 in.), and the mid-shaft radius (one-half of my diameter) is 2.5 cm (0.98 in.). So
Volume = 3.14 x (2.5 x 2.5) x 18 = 353.25 cubic cm.
The BJU International study on penis size (https://bjui-journals.onlinelibrary.wiley.com/doi/10.1111/bju.13010) found that the average erect length is 13.12 cm (5.17 in.), with a standard deviation of 1.66 cm (0.65 in.). The average erect girth is 11.66 cm (4.59 in.), with a standard deviation of 1.10 cm (0.43 in.). Flaccid and stretched numbers are in the abstract. Volume is not in the study, so there's insufficient data to calculate standard deviations for volume. Still, a cock at one standard deviation above the mean, at the mean, and one standard deviation below the mean for length and girth would have volumes of
V = 3.14 x (2.03 x 2.03) x 14.78 = 191.25 cubic cm (radius calculated by dividing the diameter by pi and dividing that number by 2).
V = 3.14 x (1.86 x 1.86) x 13.12 = 142.52 cubic cm.
V =3.14 x (1.68 x 1.68) x 11.46 = 101.56 cubic cm.
The standard deviation is calculated with these formulas in metric (convert to English with the numbers above as needed):
(BPEG - 13.12) / 1.66.
(MSEG - 11.66) / 1.1.
My numbers and pictures:
BPEG: 18 cm
MSEG: 15 cm
(18 - 13.12) / 1.66 = +2.94 standard deviations.
(15 - 11.66) / 1.1 = +3.04 standards deviations.
Volume = 3.14 x (2.5 x 2.5) x 18 = 353.25 cubic cm.
