The average erect penis length is generally considered to be between 5.1 to 5.5 inches (13 to 14 cm), with girth around 4.5 to 5 inches, based on clinical studies, not self-reported data, which often inflates figures. Flaccid sizes vary more, from about 3 to 5 inches (7.6-13 cm), and measurements are typically taken from the top, base to tip, pressing into the pubic fat.
Average Penis Size by Age Group:
Here's a ballpark range for penis size by age group (erect length): 11-12 years: 3.1 - 4.0 inches (think small fry) 13-14 years: 4.0 - 4.7 inches (graduating to medium fries) 15-16 years: 4.7 - 5.5 inches (reaching the large fry territory)
The 2015 review (measured by staff) found average flaccid, stretched, and erect lengths of 9.16 cm (3.61 in), 13.24 cm (5.21 in), and 13.12 cm (5.17 in), respectively, and average flaccid and erect circumferences of 9.31 cm (3.67 in) and 11.66 cm (4.59 in), respectively.
One thing is for sure: You don't need to have a 9- or 10-inch penis to be considered “big,” despite what pornography and popular media might make you think. Anything over that 5-inch mark would be considered bigger than average.
What is a micropenis? This term is used by researchers to refer to penises less than 2.8 inches (7 centimeters) in length when stretched. This condition is thought to affect only 0.6% of men (or six in 1,000 men) and is caused by inadequate testosterone at a late stage of fetal development.
"Big" for a man is subjective and context-dependent (clothing, health, physique), but generally means sizes beyond standard large, like XL and above (XL chest 46-48"+), often with taller measurements, or physiques with larger shoulders/waists (waist over 37" for health), with "big" often referring to being significantly larger than average in height, width, or muscle mass.
The average size
According to Professor Joachim Osur, a reproductive and sexual health expert, the correct penile size is usually measured on erect manhood. Twelve and a half centimetres or 4.9 inches, to 19.1 centimetres or 7.5 inches, is the normal size for adult men.
What is the average penis size? Average penis size for an adult man is about 5.16 inches (13.12cm) long, when erect, with a girth of about 4.59 inches at the widest part (11.66cm). Flaccid, these penis size averages become 3.61 inches (9.16 cm) in length and 3.66 inches (9.31 cm) in girth.
Penis enlargement surgery, also known as phalloplasty or penile augmentation, aims to increase the length or girth of the penis. However, it is generally reserved for severe cases and often carries significant risks, such as infection and scarring.
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.
Based on these studies, the average length of an erect penis is between 5.1 and 5.5 inches (12.95-13.97 cm), but after taking volunteer bias into account, it is probably toward the lower end of this range. Studies show that a majority of men wish they were larger, with some choosing penile lengthening surgery.
The average length of a flaccid penis was 9.16 cm, whereas the average lengths of a flaccid stretched penis and an erect penis, respectively, were 13.24 and 13.12 cm, In addition, the average circumference was 9.31 cm for a flaccid penis and 11.66 cm for an erect penis...
Thirdly, a survey of research has revealed that the average length of a flaccid penis was 9.16 cm, the average length of a flaccid stretched penis was 13.24 cm, and the average length of an erect penis was 13.12 cm.
A 2020 research article notes that most males believe the average length of an erect penis is around 15.2 centimeters (cm) or 6 inches (in). In fact, the average is much smaller. While sizes vary widely, the average length is probably 12.9 to 13.97 cm (5.1–5.5 in), most likely toward this scale's smaller end.
Although the average penis length is around 13 cm, penises longer than 10 cm in adult men are generally considered normal. Penises shorter than 10 cm are considered small, and those shorter than 7 cm are classified as micropenis.
In more reliable studies, where researchers did the measuring, the average erect penis length was about 5.36 inches, or 13.6 centimeters (cm). When measuring stretched, non-erect, penises, the average was about 5.1 inches, or 13 cm.
Average male sizes vary by country, but in the U.S., men are around 5'9" (69 inches) tall and weigh about 199 lbs with a 40.6-inch waist; globally, heights range, with taller averages in Europe (e.g., Netherlands) and shorter in parts of Asia and South America, highlighting factors like genetics and nutrition. Clothing sizes like Medium often target heights of 5'9" to 5'11", but proportions differ, so checking specific size charts for chest, waist, and inseam is essential.
Several factors can contribute to differences in penile girth among men, including: – Genetics: Just like any other physical attribute, genetics play a significant role in determining penile girth. – Age: As men age, changes in hormone levels and blood flow can impact penile girth.
Perhaps more interesting is the narrow distribution of erect penis size. Most men are remarkably close to each other: 4.7 inches is in the bottom 25 percent, and 5.6 inches is at the top 25 percent. Very few people — those within the top 1 percent — reach 9 inches.
For a 25-year-old male, average erect penis length typically falls between 5.1 to 6.6 inches (13-17 cm), with girth around 4.7 to 4.9 inches, though studies vary, with most adult growth finishing in late teens, and perception often differs from clinical reality, notes Pelvic Exercises Physiotherapy.
A 7-inch penis is likely above average in length, although most of the available data on average penis size is considered unreliable due to participant bias. There's no evidence that penis size is related to your fertility, orgasm strength, or overall sexual health.
According to a scientific study published in the British Journal of Urology International, the average penis girth worldwide is 4.69 inches (11.91 cm) when erect and 3.67 inches (9.32 cm) when flaccid.
Of the 50 females surveyed, 45 reported that width felt better, with only 5 reporting length felt better (chi square = 32.00, df = 1, p < . 001). No females reported that they could not tell any difference. Some did report that sex in a relationship was better than sex without commitment.