# Weight of water by volume?

**URL:** <https://boards.straightdope.com/t/weight-of-water-by-volume/67679>\
**Category:** Factual Questions\
**Created:** [June 5, 2001, 3:03pm UTC](https://boards.straightdope.com/t/weight-of-water-by-volume/67679 "2001-06-05T15:03:57Z")\
**Posts on this page:** 4\
**Page:** 2

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**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 6, 2001, 11:15am UTC](https://boards.straightdope.com/t/weight-of-water-by-volume/67679/21 "2001-06-06T11:15:52Z")

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> [@](#):
>
> \*Originally posted by Scylla \*  
> \*\*How much does a square foot of water weigh? \*\*

very Zen

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**Author:** ![Coldfire](https://avatars.discourse-cdn.com/v4/letter/c/a587f6/32.png) [@Coldfire](https://boards.straightdope.com/u/Coldfire)\
**Post date:** [June 6, 2001, 11:16am UTC](https://boards.straightdope.com/t/weight-of-water-by-volume/67679/22 "2001-06-06T11:16:55Z")

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> [@](#):
>
> \*Originally posted by Coldfire \*  
> **H[sub]2[/sub]O weighs one kilogram per liter**

Ahem!

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**Author:** ![Spritle](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@Spritle](https://boards.straightdope.com/u/Spritle)\
**Post date:** [June 6, 2001, 11:54am UTC](https://boards.straightdope.com/t/weight-of-water-by-volume/67679/23 "2001-06-06T11:54:38Z")

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not to be the chemistry teacher prick bastard, but one liter (litre) or pure H[sub]2[/sub]O has a **mass** of 1.0 kg at **standard temperature**. Of course, we all know that salt water is more dense and that temperature affects volume.

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**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 6, 2001, 1:05pm UTC](https://boards.straightdope.com/t/weight-of-water-by-volume/67679/24 "2001-06-06T13:05:25Z")

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> [@](#):
>
> \*Originally posted by Coldfire \*  
> \*\*
> 
> > [@](#):
> >
> > \*Originally posted by Coldfire \*  
> > **H[sub]2[/sub]O weighs one kilogram per liter**
> 
> Ahem! \*\*

Sorry, My Bad; scoured the thread for that and now it’s so obvious.

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