# How do you calculate weight of gallon of water?

Weigh an empty container; pour a gallon of water into it. Weigh it again. Calculate the difference. That is the weight of the gallon of water.

### What is the difference in weight between gallon of water and gallon of gasoline?

A gallon of water and a gallon of gasoline have the same volume measure. A gallon, which is a measure of volume, is a gallon, is a gallon. But the gasoline is less dense than water, so it will weigh less. The weight of a gallon of water is about 8.34 pounds , while a gallon of gasoline weighs in the ball park of about 6.25 pounds, depending on the fuel. The gallon of water…

### How many PSI does 1 gallon of water create?

That depends on the surface area over which the weight of the gallon of water is distributed. Divide 8.34 pounds -- the weight of a gallon of water -- by the area, in square inches, the gallon is sitting upon. If the gallon of water is in a typical plastic jug that you buy at the grocery store, it's not creating much pressure at all -- only about 2.2 ounces per square inch.

### What is the horizontal weight of a gallon water?

"Weight" is a number that those in the know call a "scalar" ... a number that has no direction ... which means that there's no such thing as 'horizontal' weight. The weight of a gallon of water is about 8.35 pounds. That's the force of gravity trying to pull the earth and the gallon of water together. It acts in the direction toward the center of the earth, which is the direction we call 'vertical'…