Women's preferences for penile girth vary widely, as every individual is unique. However, several studies using 3D models or surveys have offered some general insights into what women report as their preferences.
Average penis sizes around the world
Flaccid circumference/girth was between 9 to 10 centimetres (3.5 to 3.9 inches) when flaccid. When Erect the average length ranged from 12 to 16 centimetres (4.7 to 6.3 inches). When erect the circumference was around 12 centimetres (4.7 inches).
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.
Anything under 4.5 inches erect girth is considered slightly below average but not abnormal.
Between 5 and 6 inches is preferred by about 90 % of the women.
"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.
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.
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.
What's considered "small" is subjective, and what matters most is whether your penis functions properly during sex. Here's a reality check: Most men are within the average range. Studies show that erect penis size for adult men typically falls between 4.5 and 6.0 inches.
Average Male Size – The BIG Size Myth
These types of studies have contributed to the big size myth in current society. More accurate clinical studies show average excited male length is 5.1-5.5 inches (12.95-13.97 cm).
It's above global average, and I'd consider it big.
Fifty-seven (85%) patients thought a 'normal' penile length should range from 10 to 17 cm (median value of 12 cm). Ten patients (15%) were not able to estimate 'normal' penile size. No patient was found to have a penile length under the 2.5 percentile according to our nomogram.
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.
The study participants preferred, on average, an erect length of 6.3 inches and girth of 4.8 inches for a long-term partner (compared to the slightly larger preference of 6.4 inches in length and 5 inches in girth for a one-time partner).
The average erect penis length (using clinical measurements, not self-reports) generally falls between 5.1 to 5.7 inches (12.95 to 14.5 cm), with girth averaging around 4.5 to 5.1 inches (11.3 to 13 cm), though studies vary slightly, and many men overestimate the average size, with self-reported data inflating perceptions.
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.
While this may seem like a logical assumption, there is no scientific evidence to support this claim. It is important to note that height and penis size are not directly related. Studies have shown that there is no significant relationship between the two.
In general, smaller flaccid penises lengthen at erection by a greater percentage than larger flaccid penises, with most men reaching an average size of 5 to 7 inches when erect.
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.
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.
1. Tissue Stretching: One proposed mechanism is that repetitive stretching or pulling of penile tissue during exercises may stimulate cellular growth and tissue expansion over time.
Penis size is determined by your genes , just like eye color or foot size. And there's a lot less difference in penis size between guys when they get an erection than when their penises are relaxed. Despite what you may hear or read, no special exercises, supplements, or diets will change a guy's penis size.