Science goes to great lengths to measure average penis size
Key findings:
The answer, according to anatomically precise measurements of up to 15,521 men from around the world, is 3.6 inches (9.16 centimeters) in the resting state and 5.2 inches (13.12 centimeters) when erect.
It takes 3.6 inches from the root of the penis to the tip of the glans to hit the 50th percentile for flaccid length. That means 68 percent of men measure between 3 and 4.2 inches, and 95 percent are in the 2.4- to 4.8-inch range.
Furthermore, with an average length of 5.2 inches for an erect penis, 68 percent of men measure between 4.5 and 5.8 inches and 95 percent are in the 3.9- and 6.5-inch range.
The average circumference, or girth, of a resting penis is 3.7 inches; for an erect penis, it's 4.6 inches.
Their investigation presented an opportunity for the researchers to test the validity of the folklore surrounding penis size. They found no convincing support in the data for the idea that penis size is correlated with the length of one's index finger or the ratio of the length of the second and fourth fingers. Nor was there any good evidence that foot size was a predictor of penis size. Age, body mass index and testicular volume also were unrelated.
However, the data did show that height offered some predictive value for estimating penis length. The correlation was weak but statistically significant, according to the study.
Key findings:
The answer, according to anatomically precise measurements of up to 15,521 men from around the world, is 3.6 inches (9.16 centimeters) in the resting state and 5.2 inches (13.12 centimeters) when erect.
It takes 3.6 inches from the root of the penis to the tip of the glans to hit the 50th percentile for flaccid length. That means 68 percent of men measure between 3 and 4.2 inches, and 95 percent are in the 2.4- to 4.8-inch range.
Furthermore, with an average length of 5.2 inches for an erect penis, 68 percent of men measure between 4.5 and 5.8 inches and 95 percent are in the 3.9- and 6.5-inch range.
The average circumference, or girth, of a resting penis is 3.7 inches; for an erect penis, it's 4.6 inches.
Their investigation presented an opportunity for the researchers to test the validity of the folklore surrounding penis size. They found no convincing support in the data for the idea that penis size is correlated with the length of one's index finger or the ratio of the length of the second and fourth fingers. Nor was there any good evidence that foot size was a predictor of penis size. Age, body mass index and testicular volume also were unrelated.
However, the data did show that height offered some predictive value for estimating penis length. The correlation was weak but statistically significant, according to the study.