How much blood is in an average erect penis?
Well, a friend of mine said that he couldn’t have sex because every time he got an erection he fainted from lack of blood to his brain.
Safe sex?
Could it be more than half a pint?
This is to settle a debate in our studio.
African or European?
half a pint?
two cups?
16 ounces?
Sheesh!!
A single popsicle is like 2 ozs.
Imagine one eight times bigger!!
Or are you guys especially endowed?
Half a pint is equal to a cup, or eight ounces.
You are talking about an ounce of blood, or less. Even John Holmes didn’t use a cup! (pun intended) 
Half a pint is one cup, actually. A single cup is about 14.4 cubic inches.
Now, if we model an erect penis as a right circular cylinder – a shape which it appears to closely resemble – we can determine the volume contained therein. An average (white male) erect penis is 6.2 inches long and 3.7 inches in circumference. Total volume is then 6.75 cubic inches, a factor of two less than the OP’s “half a pint,” and this without subtracting initial, flaccid volume (although, in my experience, there is a noticeable difference between initial and final volume).
It is still possible, of course, that males with behemoth members, substantially outweighing the “average” penis, might require as much as a half pint of blood to fully awaken their trouser snake. Said member, though, would need to have a much increased length and/or cross-sectional area. Should the OP locate such a specimin, I would recommend a tightly controlled series of measurements in both possible states in order to assure accurate calculations.
For this fun experiment you can do at home you will need:
1 graduated cylinder
An erect penis (human)
Well the average volume of the human body is supposedly .1 m^3. The average amount of blood in a human is 6 quarts. Thats 60 quarts of blood per cubic meter of human. Quick!!! junior scientists, to the lab. Get a graduated cylinder fill it to the top with water, then stick an erected penis in there. If this turns you on, that’s a bonus. Pull him out and measure how much the water level dropped due to water being forced out by the volume of the penis, that’s the volume of the penis. Convert this into cubic meters (if it’s in ML, divide by a billion), then multiply this number by the average quarts of blood in a cubic meter (60) to get a rough estimate of the answer to this question.
If your self-confident (or used someone elses penis), post the results here and we can have fun trying to derive your length.
It of course depends a lot on size.
Volume can be calculated by multiplying cross sectional area (pi times diameter) by length (using a cylinder as an approximation). Volume of blood can be estimated by subtracting the flaccid volume from the erect.
For an “average” penis, let’s say the change is from 1.25 inch diameter x 3 inch length to 1.5 inch x 6 inch. That gives a volume change of about 106 cc, or about 3.5 oz. or 1/5 of a pint.
For someone of Long Dong Silver’s dimension’s, let’s assume a change from 2 inch diameter x 9 inches to 3 inches x 18 inches. This gives a volume change of about 729 cc, or 24 oz, or 1.5 pints.
YPMV (Your Penis May Vary)
Fascinating. Do you have any data on the average white female penis?
It’s generally much smaller and typically in a boat.
OOPS!!
MY BAD!!
Or Errol Flynn?
I won’t be dipping ANYTHING into ANYTHING ELSE while at work.
This isn’t just a skin-deep question:
They don’t start at the front and extend 6.2in out - the penisy flesh is embedded quite a bit further into the body - how far in is that bit and how much blood does it contain?
And get your F’s.
.1 m is 3.937 inches. A bit small for a human body. Even cubed.
Especially cubed.
“Half a pint?? That’s very nearly an armful!” Tony Hancock, 1959.
It’s not (.1 m)^3, it’s .1m^3, that is not a tenth of a meter cubed but a tenth of a cubed meter.
Maybe I’m missing something in your post, but if the question is specifcally how much blood is in the erect penis, would one not follow this procedure?
- Insert flaccid penis into graduated beaker filled with water
- Remove penis and measure how much water is left.
- Subtract that measurement from the original volume of water and that’s the volume of a flaccid penis.
- Insert erect penis into graduated beaker filled with water
- Remove penis and measure how much water is left.
- Subtract that measurement from the original volume of water and that’s the volume of an erect penis.
- Subtract the volume obtained in step 3 from the volume obtained in step 6 and that’s the volume of blood that was transferred to the penis to make it erect.
The reason I would suggest going to these lengths (no pun intended) is because your calculation of blood/m^3 would be an average and there could be significant differences in blood/m^3 between various body parts.