How many pounds of water is in a gallon?

Answer 1

Weight of Water

Water weighs 1000 kilograms per cubic meter when it's a liquid at 4 °C. That's 1 gram per cubic centimeter. There are 3785.41178 cubic centimeters per U.S. gallon. That's 3785.41178 grams per gallon, or 3.78541178 kilograms per U.S. gallon. That's about 8.3454 pounds per U.S. gallon.

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

At 60 °F. 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 60 °F.

Make it easy to remember: an ounce of water weighs about an ounce. It can't be easier 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.

Answer 2

One US gallon of water weighs about 8.35 pounds.

AnswerWater weighs 1000 kilograms per cubic meter when it's a liquid at 4 °C. That's 1 gram per cubic centimeter. There are 3785.41178 cubic centimeters per U.S. gallon. That's 3785.41178 grams per gallon, or 3.78541178 kilograms per U.S. gallon. That's about 8.3454 pounds per U.S. gallon. AnswerOne wine measure or US gallon of water weighs 8.34 pounds. An Imperial Gallon is ten pounds of water at 62 °F and 30 inches of mercury air pressure.

At 60 °F. 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 60 °F.

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 stored underground and are at a pretty constant temperature. Fortunately it's pretty cool down there.

Make it easy to remember; an ounce of water weights, about an ounce. It can't be easier 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. Just like it says, up top.

CORRECTION

Gasoline is sold by VOLUME (liters, gallons), not by WEIGHT (pounds, kilos.) Just like your box of cereal, its going to be the same mass no matter time nor day. And lest your friend says "the gasoline is more dense when its cooler" you can rest assured that pumps have corrected for that for a long time.

Answer 3

A gallon of water weighs about 8 pounds. You might want to remember

the rhyme: " A pint is a pound the world around." (although that only applies to water) and that there are 8 pints in a gallon.

Answer 4

One US gallon of water weighs approximately 8.35 pounds.

Answer 5

The answer will depend on whether you mean the US gallon or the gallon as used elsewhere.

Answer 6

1 US gallon is 8.35 pounds