# If you were able to collect all human ejaculate across the world... **URL:** \ **Category:** Factual Questions\ **Created:** [October 19, 2012, 10:22pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283 "2012-10-19T22:22:56Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![drewtwo99](https://avatars.discourse-cdn.com/v4/letter/d/d07c76/32.png) [@drewtwo99](https://boards.straightdope.com/u/drewtwo99)\ **Post date:** [October 19, 2012, 10:22pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/1 "2012-10-19T22:22:56Z")
…how long would it take to fill your average American, back-yard, in-ground swimming pool? No… this is not a needs answer fast. I’m just curious how one would go about calculating this. Ignore all feasability and logistics in transportation… so, just assume that magically, somehow, all ejaculated semen just magically teleports to to empty swimming pool. How long does it take to fill it up? ---
**Author:** ![Iggy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/iggy/32/3364_2.png) [@Iggy](https://boards.straightdope.com/u/Iggy)\ **Post date:** [October 19, 2012, 11:23pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/2 "2012-10-19T23:23:58Z")
Random yahoo page said a backyard pool holds about 185 cubic yards = 141,442.66 liters. Wikipedia notes volume of ejaculate varies widely between 0.1 and 10ml. For the sale of argument say 5ml is average. Given those volumes that would require 282,885,832 ejaculations to fill one pool. Roughly 7 billion humans, half males so 3.5 billion males. Not all are old enough yet to be capable of contributing to the project or young enough to be capable of producing. Being very generous, there are about 1.158 billion males either under age 15 or over age 65. (Couldn’t 'find demographic numbers for a younger age group, say \<10) Leaving 2.342 billion males in peak position to contribute. For argument’s sake, suppose each male in our peak group only ejaculates once every week… You could fill 11.82 swimming pools every day at that rate, or one about every 2 hours and 2 minutes. ---
**Author:** ![drewtwo99](https://avatars.discourse-cdn.com/v4/letter/d/d07c76/32.png) [@drewtwo99](https://boards.straightdope.com/u/drewtwo99)\ **Post date:** [October 19, 2012, 11:30pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/3 "2012-10-19T23:30:12Z")
> [@Iggy](#): > > Random yahoo page said a backyard pool holds about 185 cubic yards = 141,442.66 liters. > > Wikipedia notes volume of ejaculate varies widely between 0.1 and 10ml. For the sale of argument say 5ml is average. > > Given those volumes that would require 282,885,832 ejaculations to fill one pool. > > Roughly 7 billion humans, half males so 3.5 billion males. Not all are old enough yet to be capable of contributing to the project or young enough to be capable of producing. Being very generous, there are about 1.158 billion males either under age 15 or over age 65. (Couldn’t 'find demographic numbers for a younger age group, say \<10) Leaving 2.342 billion males in peak position to contribute. > > For argument’s sake, suppose each male in our peak group only ejaculates once every week… > > You could fill 11.82 swimming pools every day at that rate, or one about every 2 hours and 2 minutes. Holy hell!!! Thanks for showing your work… that’s pretty incredible. I was figuring it would be faster than I would think, but not that fast!! ---
**Author:** ![running\_coach](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/running_coach/32/15836_2.png) [@running\_coach](https://boards.straightdope.com/u/running_coach)\ **Post date:** [October 19, 2012, 11:35pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/4 "2012-10-19T23:35:34Z")
Talk about a circle-jerk! ---
**Author:** ![jz78817](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/jz78817/32/1028_2.png) [@jz78817](https://boards.straightdope.com/u/jz78817)\ **Post date:** [October 19, 2012, 11:48pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/5 "2012-10-19T23:48:00Z")
this is terrible, this question. ---
**Author:** ![kenobi\_65](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kenobi_65/32/13178_2.png) [@kenobi\_65](https://boards.straightdope.com/u/kenobi_65)\ **Post date:** [October 19, 2012, 11:48pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/6 "2012-10-19T23:48:14Z")
Oh, come on! ---
**Author:** ![Fiendish\_Astronaut](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/fiendish_astronaut/32/3295_2.png) [@Fiendish\_Astronaut](https://boards.straightdope.com/u/Fiendish_Astronaut)\ **Post date:** [October 19, 2012, 11:51pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/7 "2012-10-19T23:51:11Z")
Surely the 15-19 year old demographic would skew the once a week theory. ---
**Author:** ![Trinopus](https://avatars.discourse-cdn.com/v4/letter/t/2bfe46/32.png) [@Trinopus](https://boards.straightdope.com/u/Trinopus)\ **Post date:** [October 19, 2012, 11:53pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/8 "2012-10-19T23:53:15Z")
Also probably the fluid volume. Youngu’ns are chock full o’ juice! ---
**Author:** ![John\_DiFool](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/john_difool/32/19543_2.png) [@John\_DiFool](https://boards.straightdope.com/u/John_DiFool)\ **Post date:** [October 19, 2012, 11:58pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/9 "2012-10-19T23:58:04Z")
> [@kenobi\_65](#): > > Oh, come on! Give me a few minutes. ---
**Author:** ![jayjay](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/jayjay/32/6765_2.png) [@jayjay](https://boards.straightdope.com/u/jayjay)\ **Post date:** [October 20, 2012, 1:56am UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/10 "2012-10-20T01:56:30Z")
> [@](#): > > If you were able to collect all human ejaculate across the world… …it would be really, really gross… ---
**Author:** ![Michael63129](https://avatars.discourse-cdn.com/v4/letter/m/3da27b/32.png) [@Michael63129](https://boards.straightdope.com/u/Michael63129)\ **Post date:** [October 20, 2012, 2:15am UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/11 "2012-10-20T02:15:46Z")
> [@Fiendish\_Astronaut](#): > > Surely the 15-19 year old demographic would skew the once a week theory. For me it is about once a day, and I am 27 (it was also about the same when I was 15-19); once a week is like what I would think 90 year olds would do. ---
**Author:** ![voltaire](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/voltaire/32/313_2.png) [@voltaire](https://boards.straightdope.com/u/voltaire)\ **Post date:** [October 20, 2012, 3:32am UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/12 "2012-10-20T03:32:37Z")
Think bigger! How long would it take to give Earth a pearl-necklace, with each “pearl” consisting of a pool? ---
**Author:** ![TriPolar](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tripolar/32/3008_2.png) [@TriPolar](https://boards.straightdope.com/u/TriPolar)\ **Post date:** [October 20, 2012, 3:52am UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/13 "2012-10-20T03:52:14Z")
\*\*If you were able to collect all human ejaculate across the world… \*\* …then you must be really popular. ---
**Author:** ![Duckster](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/duckster/32/1244_2.png) [@Duckster](https://boards.straightdope.com/u/Duckster)\ **Post date:** [October 20, 2012, 4:51am UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/14 "2012-10-20T04:51:26Z")
> [@drewtwo99](#): > > I was figuring it would be faster than I would think, but not that fast!! Come again? ---
**Author:** ![obbn](https://avatars.discourse-cdn.com/v4/letter/o/d6d6ee/32.png) [@obbn](https://boards.straightdope.com/u/obbn)\ **Post date:** [October 20, 2012, 4:54am UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/15 "2012-10-20T04:54:19Z")
My ex-wife could probably be of great assistance in helping you with this project! 😃 ---
**Author:** ![njtt](https://avatars.discourse-cdn.com/v4/letter/n/ecd19e/32.png) [@njtt](https://boards.straightdope.com/u/njtt)\ **Post date:** [October 20, 2012, 8:33am UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/16 "2012-10-20T08:33:20Z")
It would take a lot of spunk. ---
**Author:** ![Alka\_Seltzer](https://avatars.discourse-cdn.com/v4/letter/a/c89c15/32.png) [@Alka\_Seltzer](https://boards.straightdope.com/u/Alka_Seltzer)\ **Post date:** [October 20, 2012, 9:21am UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/17 "2012-10-20T09:21:31Z")
This isn’t what the term “gene pool” means. ---
**Author:** ![HeyHomie](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/heyhomie/32/207_2.png) [@HeyHomie](https://boards.straightdope.com/u/HeyHomie)\ **Post date:** [October 20, 2012, 1:23pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/18 "2012-10-20T13:23:29Z")
> [@Trinopus](#): > > Also probably the fluid volume. Youngu’ns are chock full o’ juice! Really? Kidding aside, is the volume of ejaculate of an adolescent male likely to be more than that of an adult male? ---
**Author:** ![johnpost](https://avatars.discourse-cdn.com/v4/letter/j/f17d59/32.png) [@johnpost](https://boards.straightdope.com/u/johnpost)\ **Post date:** [October 20, 2012, 1:44pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/19 "2012-10-20T13:44:04Z")
> [@Trinopus](#): > > Also probably the fluid volume. Youngu’ns are chock full o’ juice! > [@HeyHomie](#): > > Really? > > Kidding aside, is the volume of ejaculate of an adolescent male likely to be more than that of an adult male? but they do drain the tank every day. ---
**Author:** ![Rick](https://avatars.discourse-cdn.com/v4/letter/r/9f8e36/32.png) [@Rick](https://boards.straightdope.com/u/Rick)\ **Post date:** [October 20, 2012, 2:40pm UTC](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283/20 "2012-10-20T14:40:48Z")
> [@HeyHomie](#): > > Really? > > Kidding aside, is the volume of ejaculate of an adolescent male likely to be more than that of an adult male? From a sample size of one- yes. [Next page](https://boards.straightdope.com/t/if-you-were-able-to-collect-all-human-ejaculate-across-the-world/638283.md?page=2)