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How many pounds does one gallon of water weigh

One wine calculates or US gallon of water weighs 8.34 pounds. An Imperial Gallon is ten pounds of water at 62F and 30 inches of mercury air pressure.

At 60F. The density of water (and any other liquid) is dependent on temperature. So a gallon of boiling water weighs less (8.00 pounds) than a gallon of water at 60F.

So fill up your car first thing in the morning when it should be the coolest, you'll get more pounds of gasoline.

Except that most vehicle fuels are kept underground and are at a pretty constant temperature. Fortunately it's pretty cool down there...

Make it simple to remember; an ounce of water weights, about an ounce. can't be simpler than that. So an American pint, 16 ounces, weighs about a pound. And an

American gallon, 8 pints, about 8 pounds. Whereas an Imperial pint, 20 ounces; and an Imperial gallon, 160 ounces, about ten pounds.

 

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