Come on people, this applies to guys AND girls. Find your volume Guys, take your circumference. divide by 3.14 (pi) divide that by 2. thats your radius times that by itself times that by 3.14 (pi) times that by your length thats your cubic volume. Girls... get a funnel and measure how much fits in there.
for me ~6.5inch divided by pi divided by 2 = approx 1 inch radius 1 inch radius * 1 inch radius *3.14 = 3.14 square inch cross section 3.14 * 6.5 inch length = 20.14 cubic inch cock or 330cc or mL or 11.5 fluid ounces
silly, you funnel in water..., when you stand up you can measure how much comes out *with a straight face* this also works for ones anal cavity.
Dicks aren't cylindrical. At least, mine's not. Try fluid displacement instead. Get something with mm^3 measurements on it. Fill it up. Put your wang in it. Take it out. Measure the difference. It's a lot less math and a lot more accurate.
