The penis is most similar in shape to a cylinder; and the way to measure cylindrical volume is length times pi [approximately 3.14] times radius squared [base area times height]. Because it's difficult to obtain an accurate measure of penile radius, you'll have to use a slightly different approach to measuring penile volume.

Take your average girth measurement (measure your thickest and thinnest points and divide that number by 2). *Then divide that number by 6.28. Now square that number and multiply it by 3.14. Multiply that number by length. The resulting product will give you an approximation of your penile volume.

*Girth divided by pi roughly equals diameter, and diameter divided by 2 equals radius.

Take your average girth measurement (measure your thickest and thinnest points and divide that number by 2). *Then divide that number by 6.28. Now square that number and multiply it by 3.14. Multiply that number by length. The resulting product will give you an approximation of your penile volume.

*Girth divided by pi roughly equals diameter, and diameter divided by 2 equals radius.

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