Rough Penis Size Rarity

Tight_End_SC

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Interesting stats. I am in the 1 in 10 group, you @karma77 are not however. (hot pics btw :blush:)

No doubt there is data that may or may not support this. From my experience with men (have seen a few) I would say it is pretty close to being accurate.
 

Snakebyte

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What you say to how accurate the following chances of penis size are.

6 inches: 1 in 10 guys
7 inches: 1 in 100 guys
8 inches: 1 and 1000 guys
If we're speaking in scientific numbers and statistical calculations
6 is more like 1 in 40
7 seems to be roughly correct
8 is way less than 1 in 1000

1 in 10,000 guys ?
Way less
 

engineer805

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I'd say your numbers are pretty accurate!

"A 2015 study by King's College London and the NHS looked at the penis length and girth of more than 15,000 men worldwide. The average, professionally (by urologists) measured, turned out to be 5.1 inches (13 cm) when erect. Only 5% were longer than 6.3 inches, while just 0.14% had what is known as a micro penis - defined as less than three inches when erect. As for girth, the average flaccid penis was 3.6 inches (9 cm) in circumference, and 4.6 inches when erect." This survey is likely far more accurate than most, which are often based on self-reported measurements - notoriously exaggerated.

The actual medical journal article is at Error - Cookies Turned Off
Figures 2 and 3 (the percentile plots) suggest that, if you're 18 cm = 7.1" long, 99% are smaller than you - and, if your girth is 15 cm = 5.9", 99% of men are smaller than you.

Although this survey doesn't directly report on larger sizes, a close look at the high end of the length plot Fig 2 shows a trend line of about 1/10 the rate for every added 2.5 cm. Therefore, I'd expect 1 in 1,000 at 8", 1 in 10,000 at 9", 1 in 100,000 at 10", and 1 in a million at 11" length. For girth, Fig 3, the trend is steeper at about 1/10 the rate for every added 1.9 cm. So I'd expect 1 in 1,000 at 16.9 cm = 6.6", 1 in 10,000 at 18.8 cm = 7.4", 1 in 100,000 at 20.7 cm = 8.1", and 1 in a million at 22.6 cm = 8.9" girth.
 

engineer805

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VIIby5

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I'd say your numbers are pretty accurate!

"A 2015 study by King's College London and the NHS looked at the penis length and girth of more than 15,000 men worldwide. The average, professionally (by urologists) measured, turned out to be 5.1 inches (13 cm) when erect. Only 5% were longer than 6.3 inches, while just 0.14% had what is known as a micro penis - defined as less than three inches when erect. As for girth, the average flaccid penis was 3.6 inches (9 cm) in circumference, and 4.6 inches when erect." This survey is likely far more accurate than most, which are often based on self-reported measurements - notoriously exaggerated.

The actual medical journal article is at Error - Cookies Turned Off
Figures 2 and 3 (the percentile plots) suggest that, if you're 18 cm = 7.1" long, 99% are smaller than you - and, if your girth is 15 cm = 5.9", 99% of men are smaller than you.

Although this survey doesn't directly report on larger sizes, a close look at the high end of the length plot Fig 2 shows a trend line of about 1/10 the rate for every added 2.5 cm. Therefore, I'd expect 1 in 1,000 at 8", 1 in 10,000 at 9", 1 in 100,000 at 10", and 1 in a million at 11" length. For girth, Fig 3, the trend is steeper at about 1/10 the rate for every added 1.9 cm. So I'd expect 1 in 1,000 at 16.9 cm = 6.6", 1 in 10,000 at 18.8 cm = 7.4", 1 in 100,000 at 20.7 cm = 8.1", and 1 in a million at 22.6 cm = 8.9" girth.


Does anyone else find some of these studies a bit hard to believe. Average 5.1 x 4.6. Even if it was NBP im not buying it. I'm rooting for it to be true but come on. 5.1"?
 

JakeyX

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That seems about right for 6 and 7 inchers, but the rarity of 8 inchers seems off, that would put them being too common, I would say at least 1 in 25,000
 

plas95

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Does anyone else find some of these studies a bit hard to believe. Average 5.1 x 4.6. Even if it was NBP im not buying it. I'm rooting for it to be true but come on. 5.1"?
For length, I believe the studies that have it at 5.7 BP give or take is more accurate. That study just averaged a bunch of studies together, including Asian. Average girth being around 4.6 (midshaft) seems accurate from what I've seen.
 

mallak

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A lot of the studies are based on men with anatomical problems so that skews it downward i think, also not much "racial" variety either, most from Asian or "White" countries.
 

mallak

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As well the sample sizes in a lot of them are so small it makes the studies almost worthless, there just isn't a high priority as far as funding for this topic.
 

VIIby5

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Found this. It seems to be talking about the above study.


Analysis of the Interobserver Variability in Penile Length Assessment

Introduction: Many men seek penile augmentation treatments-a standard tool for their counseling is to inform them of what is "normal." Although some studies suggest good correlation between stretched and erect penile length, those that have measured stretched and erect length simultaneously have shown significant variability.

Aim: To assess the accuracy of differing penile measurements with multiple observers.

Methods: We recruited 201 adult men (mean age 49.6 years) who achieved full erection using intracavernosal injection.

Main outcome measures: Penile measurements were taken by one of seven andrology specialists in a private, temperature-controlled (21°C, 72°F) environment. Stretched flaccid and erect length and circumference were measured. We analyzed the accuracy of each flaccid measurement using the erect measurements as a reference, for the overall patient population and for each observer.

Results: The mean underestimate of length from stretched flaccid to erect was 2.64 cm (21.4%) and girth 2.27 cm (19.5%). Interobserver variability ranged from a mean underestimate of 16-27% (length) and 15-27% (girth).

Conclusions: In this large, multicenter, multi-observer study of penis size, flaccid measurements underestimated erect size. It also seems likely that there is significant interobserver variability. We believe erect penis measurements should be used for men being considered for treatment of small penis anxiety.
 
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someperson

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Although this survey doesn't directly report on larger sizes, a close look at the high end of the length plot Fig 2 shows a trend line of about 1/10 the rate for every added 2.5 cm. Therefore, I'd expect 1 in 1,000 at 8", 1 in 10,000 at 9", 1 in 100,000 at 10", and 1 in a million at 11" length. For girth, Fig 3, the trend is steeper at about 1/10 the rate for every added 1.9 cm. So I'd expect 1 in 1,000 at 16.9 cm = 6.6", 1 in 10,000 at 18.8 cm = 7.4", 1 in 100,000 at 20.7 cm = 8.1", and 1 in a million at 22.6 cm = 8.9" girth.


the only people who have over 5.5" girth, have or had priapism
 
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I trust the studies and the rigour that goes into them. I'm an academic myself. Who doesn't love a good graph or table? ;)

If the bigger sizes seem more common than that it's probably because a lot of guys come to this site precisely because they are hung, or because they want to see guys that are, so we get used to seeing bigger sizes. I reckon if I was 5.5 inches and came 3/4 of a teaspoon like the average guy I probably wouldn't be here.
 

TinyPrincess

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Does anyone else find some of these studies a bit hard to believe. Average 5.1 x 4.6. Even if it was NBP im not buying it. I'm rooting for it to be true but come on. 5.1"?
Well, actually that's average length and girth. Whether you like it or not.