How many pounds does a gallon of water weigh?

Question

How many pounds does a gallon of water weigh?

Question #2796. Asked by steve.

Moleman
Answer has 17 votes

Currently Best Answer

Moleman
18 year member
317 replies

Answer has 17 votes.

Currently voted the best answer.

One U.S. gallon of pure water weighs 8.34 pounds. One Imperial gallon weighs 10.022 pounds

May 25 2000, 10:12 AM

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Answer 1

zbeckabee

Answer has 14 votes

zbeckabee

Moderator
18 year member
11752 replies avatar

Answer has 14 votes.

U.S. Gallon equals 8.345404 pounds

http://online.unitconverterpro.com/conversion-tables/convert-group/factors.php?cat=concentration---liquid-solution

http://www.fourmilab.ch/hackdiet/www/subsection1_4_2_0_7.html

Feb 12 2008, 1:41 PM

Answer 2

Ten pounds by the original definition for an imperial gallon of eight proper pints.

The gallon was defined as the volume of distilled water weighing 10 lbs (with brass weights, of course) at 62 F (a comfortable temperature) and with the barometer at thirty inches.

https://en.wikipedia.org/wiki/Imperial_units