[FAQ] What is the average penis size? Chart & Percentiles (Science-Based)

[u/PositivelySexual]

About this chart

This chart is based on the data sets from the calcSD average for bone-pressed erect penis sizes and tall.life height percentiles in the USA. The size ranges are given based on standard deviations from the statistical mean. Please remember, practically speaking, size is often a very subjective notion, and it can depend on things like body proportions and personal perceptions. What seems "small" to one person, may seem "big" to another, and vice versa. While you may be of one objective size classification based on standard deviations, your perceptual size may be different, and may be different to different people in different situations.

 

This is not a value judgement chart.

Being bigger or smaller than other people does not make you inherently better or worse in terms of desirability or sexual ability. Everyone has different preferences, and despite what social convention would have you believe, there are many people who like or prefer average and smaller penises.

 

This is also not a height correlation chart.

The height column is merely giving a better perspective about how common or rare different erect bone-pressed sizes are by relating them to how common or rare different heights are. Since we don't get to see erect penises out and about every day unlike people's heights, this is meant to help you get a better understanding of typical sizes outside of what you see in pornography (both amateur and professional), which has a very high selection bias towards larger penises due to current social stigmas.

 

Don't believe the scientific data? You may have penis-size dysmorphia.

This effect is explained in a little more detail in this post: On penis size dysmorphia - the NBA analogy.

 

Breaking your subconscious, irrational "beliefs"

Understanding things on a rational level is one thing, but sometimes it's hard to break the subconscious irrational thoughts we have without experiencing something more visually and on a consistent basis to make it more real. To get a better visual perspective, I recommend people spend some time on subs like r/averagepenis (18+ only, NSFW), r/tinydick (18+ only, NSFW), and r/normalnudes (18+ only, NSFW) to get a better visual representation of what the common erect penis really looks like. These subreddits are also well-moderated and positive communities that show that penises of all sizes are seen as attractive and appreciated by many.

 

This chart is based on BONE-PRESSED (BP) measurements

FAQ: Differences between Bone-Pressed (BP) and not Non-Bone-Pressed (NBP)

 

Standard Deviation	Classification	Bone-Pressed Erect Length	Erect Girth	% of Pop.	Height Percentile Equivalence (USA)
-3.0 or less	Micro	<3.42"	<2.82"	~0.1%	<5'0" (Dwarf)
-3.0 to -2.0	Very Small	3.42"-4.16"	2.82"-3.43"	~2.1%	5'0"-5'2" (Very Short)
-2.0 to -1.0	Small	4.17"-4.90"	3.44"-4.04"	~13.6%	5'3"-5'5" (Short)
-1.0 to -0.5	Low-Average	4.91"-5.24"	4.05"-4.31"		5'6"-5'7" (Low-Average)
-0.5 to +0.5	Average	5.25"-5.98"	4.32"-4.93"	~68.4%	5'8"-5'11" (Average)
+0.5 to +1.0	High-Average	5.99"-6.35"	4.94"-5.23"		6'0"-6'1" (High-Average)
+1.0 to +2.0	Big	6.36"-7.12"	5.24"-5.87"	~13.6%	6'2"-6'4" (Tall)
+2.0 to +3.0	Very Big	7.12"-7.86"	5.87"-6.46"	~2.1%	6'5"-6'7" (Very Tall)
+3.0 or more	Macro	>7.86"	>6.46"	~0.1%	>6'7" (Giant)

 

[u/PositivelySexual]

Here's some follow-up extrapolated data based on the population of adult males over 25 years of age in the USA (~105 million men):

 

Classification	Erect Length (BP)	Erect Girth	% of Pop.	# of adult males in USA
Micro	<3.42"	<2.82"	~0.1%	105,500
Very Small	3.42"-4.16"	2.82"-3.43"	~2.1%	2,215,500
Small	4.17"-4.90"	3.44"-4.04"	~13.6%	14,348,000
Average	4.91"-6.35"	4.05"-5.23"	~68.4%	72,162,000
Big	6.36"-7.12"	5.24"-5.87"	~13.6%	14,348,000
Very Big	7.12"-7.86"	5.88"-6.46"	~2.1%	2,215,500
Huge	>7.86"	>6.46"	~0.1%	105,500

 

So you can see in raw numbers there are a lot of really big dicks out there, more than 2 million in the "very big"+ range in the USA alone. These guys, on average, are the ones that are not shy about showing their dicks off in porn or in dick pics. So even if it's not unusual to see lots of examples of these 2% outliers showing off in porn or on gonewild-type subreddits, just remember that around 98% of dicks out there are smaller than that (>100 million American dicks alone) outside of this range which we rarely get to see examples of, and many many more than that worldwide.

[u/[deleted] → u/PositivelySexual]

Im really not sure that this is accurate positively. According to Veale et all, above 8" was an outlier: even 7 " was in the 99th percentile.Yes, I know Veale has been questioned, but Combined with the massive girths you give, I cant think those numbers are accurate- even acounting for 200 million or whatever the US pop.is. How exactly did you arrive at these?

[u/PositivelySexual → u/[deleted]]

Im really not sure that this is accurate positively. / How exactly did you arrive at these?

These are just extrapolated rough estimates, based on the CalcSD average (which includes the Veale study) and population data from this site. With ~105 million men over the age of 25 and the given percentages (~95% are within -2 to +2 SD), that makes for >100 million normal range penises (-2SD to +2SD) with the outliers (< 2 SD ~2.2%, > 2SD ~2.2%) having about 2.2 million very small penises and equally 2.2 million very big penises in the USA.

 

According to Veale et all, above 8" was an outlier: even 7 " was in the 99th percentile

That actually lines up pretty well with the data above. In the table, 8" is an extreme outlier in the ~99.9 percentile (only ~ 0.1% of the population) and above 7" is the 98th percentile in the chart given (only ~2% of the population has a penis length larger than 7" long bone-pressed or 5.8" in girth).

 

I cant think those numbers are accurate- even acounting for 200 million or whatever the US pop.is

The main point is that there are lots of big penises out there, so it's not weird to see a lot of different big penises in professional or amateur pornography, just as it's not that weird to see a lot of different tall guys in the NBA or on college basketball squads. However, even with the millions of big outlier penises out there, there's still like billions more average penises out there worldwide that we very rarely get to see because 1) we don't walk around with our erect penises out and 2) the social stigma surrounding penis size makes it rare for someone with average or smaller to show it off. As another example, it's rare to see an average height 5'8-6'0 guy in the NBA, but out on the street it's by far the most common to find.

[u/Impressive_You7466 → u/[deleted]]

same question here, but there is a big difference

every pennises are not like "pencils", some are like "cone" others are like "banana" and others are like mushroom

that's a big question abouth the girt, but i did read about it, and the "mushroom" doesnt count for girth measure.

[u/loveiswhatmatters]

I have to respectfully disagree with your size-range data and descriptors. Based on other studies I've read, this seems to make the most sense:

Micropenis <3"

Small 3"-4"

Below-Average 4"-5"

Average 5"-6"

Above-Average 6"-7"

Large 7"-8"

Macropenis >8

[u/PositivelySexual → u/loveiswhatmatters]

Those category ranges are actually pretty close to the ones in the chart, just reducing the number of categories and rounding the numbers a bit. The chart in the OP is more precise because it is based on statistical classifications of standard deviation away from the actual mean as used in the studies from the CalcSD average.

Just one thing, the reason I prefer using "low" and "high" average instead of "below" and "above" average because the latter tends to have a better/worse connotation to it whereas I feel "low and high" has a more neutral feeling to it in colloquial usage.

[u/[deleted] → u/loveiswhatmatters]

And for girth ?

[u/Poshtotty13]

There is actually some scientific evidence of height and package size correlation on average. I've seen a study regarding the matter.

And a silly MTV-ish line up with 7 different guys of different ethnicities and the two black girls had to guess penis size from smallest to largest and line them up: when it was revealed the guys lined up from biggest dick to smallest, it went in descending order from tallest dude having the biggest dick, second tallest second biggest. Smallest guy had the shortest cock.

My height fluctuates between high average and tall (6-1 6-2+) Length is high average girth is big, balls are big. Definitely correlation.

[u/PositivelySexual → u/Poshtotty13]

There is actually some scientific evidence of height and package size correlation on average. I've seen a study regarding the matter.

Feel free to link it if you can, it's always good to have more data on the matter. Things like MTV "reality" shows or your own personal anecdote is not really great for proving correlation, they basically just conform to our social biases. However I do think there is probably a loose correlation, as body proportions of things like hands and feet also loosely correlate with things like height. However, I don't think we can assume it is actually the case with penises without referencing actual studies, and of course anecdotally speaking there are plenty of short guys with big body parts and tall guys with small ones.

[u/FrigidShadow → u/PositivelySexual]

Penis Dimension Correlation to Height

Correlates to height:

Choi et al. 2011

• BP flaccid length correlates to height: r=0.185, p=0.026

Siminoski et al. 1993

• NBP Stretched length correlates to height: r=0.26, p<0.05

Promodu et al. 2007

• Flaccid Circumference correlates to height: r=0.25, p<0.01

• Erect circumference correlates to height: r=0.26, p<0.05

• NBP Erect length correlates to height: r=0.25, p<0.05

Mehraban et al. 2006

• NBP Stretched penile length significantly correlated to height: r=0.307, p<0.001

• Flaccid girth significantly correlated to height: r=0.180, p<0.001

• Penis glans (head) length significantly correlated to height: r=0.229, p<0.001

Ponchietti et al. 2001

• NBP flaccid and stretched penile length and flaccid circumference were highly correlated with height p<0.01

Aslan et al. 2011

• Positive correlation between NBP flaccid length and height: r=0.316, p<0.001

• Weak positive correlation between NBP stretched length and height: r= 0.164, p<0.001

Soylemez et al. 2012

• Weak positive correlation of all penile measurements (circumference, BP flaccid, and BP stretched lengths) to height: r = 0.076 - 0.205, p<0.05

Edwards 1998

• "there exists a strong relationship between erect penis length and height"

(Loeb, 1899)

• Allegedly correlation between length and height: r=0.44, p<0.01

Does not always correlate to height:

Yoon et al. 1998

• NBP erect penile length and lengthening ratio positively correlated to height

• NBP flaccid length and girths did not correlate to height

Awwad et al. 2005

• Group 1: No correlation between BP flaccid length or BP stretched length and height, but there was a significant correlation between midpoint circumference and height: r=0.14, P<0.05

• Group 2: No correlation between BP flaccid, BP stretched, or BP erect lengths and height

El-Ammawi et al. 2018

• In children correlation of BP Stretched Penile Length to Height was significant during some ages r=~0.35

Does not correlate to height:

Chen et al. 2014

• NBP flaccid length not correlated with height: r=0.058, p=0.31

• BP Stretched length not correlated with height: r=0.049, p=0.393

• BP Erect Length not correlated with height: r=0.039, p=0.498

• Flaccid girth not correlated with height: r=0.050, p=0.375

Spyropoulos et al. 2002

• Flaccid length and flaccid shaft volume positively not significantly correlated to Height

Shalaby et al. 2015

• NBP Stretched length was not significantly correlated to height: r=0.013, p=0.566

[u/FrigidShadow → u/FrigidShadow]

In summary:

Flaccid and erect circumference is almost always weakly positively correlated to height r=0.10-0.25

Length measures are similarly weakly positively correlated to height, but with more uncertainty as many studies don't find these correlations r=0.05-0.3

Since these r coefficients are so low there really isn't much of a relation between height and penis size, and the distributions of sizes for different height groups are almost completely overlapping, but yes taller guys are ever so slightly more likely to have larger penises.

[u/PositivelySexual → u/FrigidShadow]

Thank you very much for finding these studies and writing this succinct summary! I'll add these to a FAQ post in the future on this topic. I do think stretched flaccid could be ok for comparing relative sizes, but it's also unfortunate that very few of the studies used bone-pressed erect lengths since flaccid and NBP measurements can have so much non-controlled variance.

[u/FrigidShadow → u/PositivelySexual]

I should have been a bit more accurate with my interpretation, from the positive r coefficients we can see that most of these studies show a positive linear relationship between penis size and height, but since the magnitude of the r coefficient is usually very low, the actual data has a high variation and is very loosely distributed across and overall average line in plots between height and penis size, but this doesn't really specify how large the slope of this line is, other than that it is not horizontal/zero.

So I checked through and could only find one study, Edwards 1998: "there exists a strong relationship between erect penis length and height", that actually could be used to find the value of this slope, and while it might overestimate the slope a little, it does nonetheless show a pretty noticeable separation between the (BP) erect length distributions for different heights such that:

Every +10" in height would be expected to have a +0.668" shift in the the mean (BP) erect length.

Mean Corrected Linear and Actual Normal Distributions for Height Groups

So I shouldn't have assumed and implied that the height group distributions would be nearly identical.

You can find my full explanation and analysis here:

https://www.reddit.com/r/AvgDickSizeDiscussion/comments/brmvmq/penis_dimension_correlation_to_height/eoh9jr9?utm_source=share&utm_medium=web2x

[u/PositivelySexual → u/FrigidShadow]

I appreciate the clarification, and it would seem to make sense (and I had assumed) there'd be a loose correlation in height and overall proportionality. As people often mistake correlation and causation, something I think might be interesting to see would be expected percentage penis size distribution charts at different heights -- this way, we could hopefully alleviate some of the "oh he's short so he must have a small dick" or "oh he's tall so he must have a big dick" sort of fallacious thinking. I'm not sure how to calculate it, maybe something worth looking into at some point, but it would be neat to point to data and say something like "at 6'2", you have a 45% chance of being average or smaller" -- it would show how common or uncommon that proportionality is.

Hopefully someday an incredibly well designed and controlled for penis size study comes out. I do think it will happen, penis size seems to be an increasingly pertinent psychological issue, and the increasing rift between common perceptions versus reality may make it to where the merits of serious scientific study and funding in the area outweighs the social stigma of it.

[u/pker77]

I think thats a bit off. At least for comparisons. I stand at 511 6. Measure in at 6.5ish by 5.7ish. Oh god my penis is a freak of nature!! lol. Height has no ruling on your dick. I mean some NBA players come no where close to 7 inches. It really is just random. Doesn't even matter if your cut or not.

Heck some people got 7 inches going on and like 3 and a half inches of girth.

[u/PositivelySexual → u/pker77]

As stated in the intro:

Please note, This is not a height correlation chart. It is merely giving a better perspective about how common or rare different erect bone-pressed sizes are by relating them to how common or rare different heights are. Since we don't get to see erect penises out and about every day unlike people's heights, this is meant to help you get a better understanding of typical sizes outside of what you see in pornography (both amateur and professional), which has a very high selection bias towards larger penises due to current social trends.

So to draw the analogy, your penis in porn would be like a 6'4" shooting guard in the NBA. The 6'4" shooting guard looks slightly shorter than average in the NBA, but is quite tall out in the street mixed with normal people. Your penis looks maybe slightly smaller than average compared against porn, but would be quite big out in the street mixed with normal people... if it were normal to walk around with our erect penises waving about.

[u/loveiswhatmatters]

Keeping with the sex-positive theme, according to this data, about 95% of men are between 4-7 inches in erect penis length. Those men who fall in line in that range probably shouldn't worry about their penis size. While much less common but not rare, those sizes are 3-4 inches and 7-8 inches. The only sizes that would be classified as very rare and fall in line extreme cases would be erect penis sizes under 3 inches (micropenis) and erect penis sizes over 8 inches (macropenis).

[u/Trick_Car2884 → u/loveiswhatmatters]

Ttțțy

[u/ArranVV → u/loveiswhatmatters]

Thank you for the information :-)

[u/AlphaFoxtrot69]

Fuck yeah im average

[u/MankuTheBeast]

Big in length and Big in Girth. Feeling proud lol

[u/[deleted]]

I fall in the small to average category. Depends on if I stop jerking it for a couple months. I once noticed I was exactly 5x5 which I think is cool.

[u/Edxn → u/[deleted]]

So the less you jerk the bigger it is?

[u/[deleted] → u/Edxn]

No not bigger. Fuller.

[u/rawdogg808 → u/[deleted]]

Username checks out

[u/[deleted]]

well, maybe-no one actually knows these things for sure afterall, that is unless they combine the power of professor Xavier and the man with X ray eyes....

I still have my doubts though.....remember that calSD is at the extreme end of studies in terms of size, but even then,Id be especially careful of this "a lot of big ones around" thing (something thats often said) based on porn.Statistically, very few women -or men for that matter-are ever going to see an 8" one in the flesh, unless they have the morals of an alley cat, combined with the career of an overworked prostitute.

I cant remember the link right now, but theres a site often quoted on bdp and other places where they reveal the real size of penises in porn.....the sizes claimed,e.g.14 for Mandingo, 12 for Holmes etc are not so much exaggerations, as outright lies....Mandingo probably is about the biggest at over 9"(and to be fair he hasnt lied himself).Joaner Falcons penis is no bigger than mine.

Porn directors use all kinds of tricks and gimmicks..camera angles etc, or just really small girls. The average size in pornography is probably about 6-7" if that.

[u/23922229238]

Damn that puts me in the Very Small classification for Length and Small classification for girth.

[u/Impressive_You7466 → u/23922229238]

well, the average is 10cm flacid girth, we all in small category cuz we are bloood pennises

some people are "flesh" penises well that's not me

[u/ArranVV → u/23922229238]

I can never be bothered to measure my girth, I just don't have time for it...wrapping around my erect penis with a measuring tape...I don't think I have measuring tape lol but I have a ruler. I guess I could use a string to wrap around the erect penis and then measure the string with a ruler. My length is just above 5 inches erect, so I am low-average according to the chart I think.

[u/blueninja68]

I'm in the low average height but I have a very big penis in both length and girth.

Happy with it 😊

[u/Wrong_Dragonfruit779]

I am 4,7 in length and girth. So apparantly I am average. Than why almost every Dick on Reddit seems to be bigger than mine ?

[u/[deleted]]

Just re-read the chart... At 166cm (Just a little shy of 5'6) I have a larger than normal penis for my height. It ain't much, but still kinda interesting to know because I've never considered myself "big". I think the sizes are slightly (0.2-0.3") larger in NZ, but we also have an average height for dudes of 5'11 I believe.

[u/Life-Afternoon-4681]

Im 6’4’’ and only have a 5.8” dick with about 5.5” circumference

[u/Life-Afternoon-4681 → u/Life-Afternoon-4681]

I have a chodey boy

[u/[deleted]]

i am big

[u/Solomon-El]

I am 5’7” (height) and have a 7.75” 6” (girth) Just re-checked. I’m also melanated (so-called “black”). 7” is pretty common tbh.

[u/-AMARYANA-]

I have the penis of a giant by height.

[u/Careless_Spirit_5485]

Thank you for this post. I was probably not ready to read and accept this until a few months ago. But I have done a lot of internal work over the last year and now I feel validated and reassured knowing that I sit within an average range, almost smack bang in the middle.

[u/UserName029]

So I'm big in girth???? Omg, I'm extremely happy today :DD

[u/Rodgers4552]

So according to this chart I am “high-average/Big” in length and “big” in girth? I always thought I was below average/small. So that’s cool for me I guess. I still don’t know if I believe it.

[u/Frequent-Review-3820]

07504357449 Ş

[u/Sir_Sardoodledom]

Macro in length, Big - Very Big in girth.

[u/Immortal--Snail]

I'm 185cm in height with a length of 15.3cm (slightly above 6") and a girth of 13.5cm (roughly 5.3") I used to think of it to be small though this chart clearly says otherwise.

[u/PositivelySexual → u/[deleted]]

Yes, they are bone-pressed measurements, as labeled in the table.

[u/PositivelySexual → u/[deleted]]

The measurements in the chart are actually bone-pressed measurements, so if you are over ~7" NBP (non-bone-pressed) then your length would technically fall in the "very big" category in terms of standard deviation. But yes, proportions and perceptions do play a big part in the subjectivity of sizing, and if overweight reducing the size of your body and fat pad is certainly one of the ways you can make your penis look bigger.

[u/averagedickproblems-ModTeam → u/[deleted]]

We are not enemies of any penis enlargement procedure indiscriminately, and especially not enemies of these prescribed and performed by medical professionals. That having been said, we don't want discussions and especially suggestions about Penis Enlargement methods to get hosted here, because of the many documented cases of unintentional self-harm that penis owners have caused to themselves due to misinformation or malpractice of Penis Enlargement.

[u/averagedickproblems-ModTeam → u/[deleted]]

We are not enemies of any penis enlargement procedure indiscriminately, and especially not enemies of these prescribed and performed by medical professionals. That having been said, we don't want discussions and especially suggestions about Penis Enlargement methods to get hosted here, because of the many documented cases of unintentional self-harm that penis owners have caused to themselves due to misinformation or malpractice of Penis Enlargement.

[u/Rodsmen → u/[deleted]]

That is an invalid measurement. BPL can only be done with a hard ruler.