# How long is the average penis? **URL:** \ **Category:** Factual Questions\ **Created:** [June 7, 2005, 10:10pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362 "2005-06-07T22:10:03Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![mikesondls2002](https://avatars.discourse-cdn.com/v4/letter/m/3da27b/32.png) [@mikesondls2002](https://boards.straightdope.com/u/mikesondls2002)\ **Post date:** [June 7, 2005, 10:10pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/1 "2005-06-07T22:10:03Z")
What is the best documented result for the average length of the penis? Also, what is the average circumference? ---
**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\ **Post date:** [June 7, 2005, 10:13pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/2 "2005-06-07T22:13:11Z")
You mean the average _human_ penis, right? - pays to be specific. ---
**Author:** ![mikesondls2002](https://avatars.discourse-cdn.com/v4/letter/m/3da27b/32.png) [@mikesondls2002](https://boards.straightdope.com/u/mikesondls2002)\ **Post date:** [June 7, 2005, 10:14pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/3 "2005-06-07T22:14:55Z")
Yes a _human_ penis. ---
**Author:** ![silenus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/silenus/32/166_2.png) [@silenus](https://boards.straightdope.com/u/silenus)\ **Post date:** [June 7, 2005, 10:14pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/4 "2005-06-07T22:14:58Z")
Average length of a penis - 5.75" to 6.25" Average length of a Doper penis - 11.25" to 12.25" Average circumference of a penis - 4.15" Average circumference of a Doper penis - 7.25" YMMV. ---
**Author:** ![Bippy\_the\_Beardless](https://avatars.discourse-cdn.com/v4/letter/b/ac8455/32.png) [@Bippy\_the\_Beardless](https://boards.straightdope.com/u/Bippy_the_Beardless)\ **Post date:** [June 7, 2005, 10:37pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/5 "2005-06-07T22:37:14Z")
Americans have on average only about 3" of penis 😉 ---
**Author:** ![danceswithcats](https://avatars.discourse-cdn.com/v4/letter/d/9e8a1a/32.png) [@danceswithcats](https://boards.straightdope.com/u/danceswithcats)\ **Post date:** [June 7, 2005, 10:47pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/6 "2005-06-07T22:47:52Z")
Unless penis ensues. ---
**Author:** ![Jake](https://avatars.discourse-cdn.com/v4/letter/j/f475e1/32.png) [@Jake](https://boards.straightdope.com/u/Jake)\ **Post date:** [June 7, 2005, 11:03pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/7 "2005-06-07T23:03:52Z")
> [@silenus](#): > > Average length of a penis - 5.75" to 6.25" > Average length of a Doper penis - 11.25" to 12.25" > Average circumference of a penis - 4.15" > Average circumference of a Doper penis - 7.25" > YMMV. How did you know?? UP with Dopers!! ---
**Author:** ![Stark\_Raven\_Mad](https://avatars.discourse-cdn.com/v4/letter/s/f9ae1b/32.png) [@Stark\_Raven\_Mad](https://boards.straightdope.com/u/Stark_Raven_Mad)\ **Post date:** [June 7, 2005, 11:22pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/8 "2005-06-07T23:22:05Z")
On average, I frequently trip over mine when I walk. What? ---
**Author:** ![snailboy](https://avatars.discourse-cdn.com/v4/letter/s/97f17d/32.png) [@snailboy](https://boards.straightdope.com/u/snailboy)\ **Post date:** [June 7, 2005, 11:33pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/9 "2005-06-07T23:33:34Z")
[This site](http://www.sizesurvey.com/result.html) lists an average length of 6.4" and an average circumference of 5.0". ---
**Author:** ![pool](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pool/32/4152_2.png) [@pool](https://boards.straightdope.com/u/pool)\ **Post date:** [June 7, 2005, 11:35pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/10 "2005-06-07T23:35:49Z")
Well mine is two inches From the GROUND!!! My 500th post ladies and gentlemen. 😃 ---
**Author:** ![Washoe](https://avatars.discourse-cdn.com/v4/letter/w/ecae2f/32.png) [@Washoe](https://boards.straightdope.com/u/Washoe)\ **Post date:** [June 7, 2005, 11:37pm UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/11 "2005-06-07T23:37:12Z")
Ah, you’ve come to the right place, as I just happen to be sort of an armchair expert on the subject. 😃 Not only did I recently start a [very similar thread](http://boards.straightdope.com/sdmb/showthread.php?t=300610) on the subject, in true Doper fashion I went and thoroughly investigated the matter myself and parlayed it into a semester project for an honors statistics course that I was taking at the time. Unfortunately, I can’t post the report here because the statistical symbols and tables won’t appear properly. If anybody wants a copy of the project, just e-mail me and I’ll send it to you. Make the header real obvious, so I don’t discard with the rest of my junk mail. (Or is there anyplace where I can post a 1 gig Word document where it can be made publicly accessible, à la one of those photobucket-like jpeg hosts)? The bottom line is that there is no definitive answer to this question at this time. Results from different studies have yielded inconsistent results. The closest definitive answer that can be given is that the mean length of a Caucasian penis is somewhere between 5.000 and 6.250 inches, and the standard deviation is most likely between .750 and .825 inches. ---
**Author:** ![Malodorous](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@Malodorous](https://boards.straightdope.com/u/Malodorous)\ **Post date:** [June 8, 2005, 12:04am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/12 "2005-06-08T00:04:05Z")
> [@Stark Raven Mad](#): > > On average, I frequently trip over mine when I walk. > > What? Wow, you must be really short 🙂 ---
**Author:** ![RealityChuck](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/realitychuck/32/195_2.png) [@RealityChuck](https://boards.straightdope.com/u/RealityChuck)\ **Post date:** [June 8, 2005, 12:08am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/13 "2005-06-08T00:08:27Z")
> [@silenus](#): > > Average length of a penis - 5.75" to 6.25" > Average length of a Doper penis - 11.25" to 12.25" > Average circumference of a penis - 4.15" > Average circumference of a Doper penis - 7.25" Does the average include the women ---
**Author:** ![ParentalAdvisory](https://avatars.discourse-cdn.com/v4/letter/p/53a042/32.png) [@ParentalAdvisory](https://boards.straightdope.com/u/ParentalAdvisory)\ **Post date:** [June 8, 2005, 12:21am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/14 "2005-06-08T00:21:19Z")
> [@silenus](#): > > Average length of a Doper penis - 11.25" to 12.25" > > Average circumference of a Doper penis - 7.25" Of course these are limp values. ---
**Author:** ![mhendo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mhendo/32/3159_2.png) [@mhendo](https://boards.straightdope.com/u/mhendo)\ **Post date:** [June 8, 2005, 12:33am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/15 "2005-06-08T00:33:03Z")
> [@RealityChuck](#): > > Does the average include the women I think **Bippy** has already addressed this issue. ---
**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\ **Post date:** [June 8, 2005, 8:46am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/16 "2005-06-08T08:46:38Z")
> [@Stark Raven Mad](#): > > On average, I frequently trip over mine when I walk. I use mine as a car substitute. ---
**Author:** ![Bear\_Nenno](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bear_nenno/32/3358_2.png) [@Bear\_Nenno](https://boards.straightdope.com/u/Bear_Nenno)\ **Post date:** [June 8, 2005, 9:14am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/17 "2005-06-08T09:14:11Z")
Works well as a boat too. ---
**Author:** ![RM\_Mentock](https://avatars.discourse-cdn.com/v4/letter/r/e274bd/32.png) [@RM\_Mentock](https://boards.straightdope.com/u/RM_Mentock)\ **Post date:** [June 8, 2005, 10:32am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/18 "2005-06-08T10:32:21Z")
> [@Malodorous](#): > > Wow, you must be really short 🙂 He’s that ten inch pianist we’ve heard about ---
**Author:** ![Ethilrist](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ethilrist/32/4604_2.png) [@Ethilrist](https://boards.straightdope.com/u/Ethilrist)\ **Post date:** [June 8, 2005, 10:46am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/19 "2005-06-08T10:46:49Z")
> [@pool](#): > > Well mine is two inches > … > From the GROUND!!! > My 500th post ladies and gentlemen. 😃 And you used it for a penis joke! \ They grow up so fast! ---
**Author:** ![Sage\_Rat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sage_rat/32/399_2.png) [@Sage\_Rat](https://boards.straightdope.com/u/Sage_Rat)\ **Post date:** [June 8, 2005, 11:00am UTC](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362/20 "2005-06-08T11:00:35Z")
Just to get some factual info in here: [The Perfect Master Speaks](http://www.straightdope.com/classics/a2_193.html) [Next page](https://boards.straightdope.com/t/how-long-is-the-average-penis/307362.md?page=2)