**How much does a gallon of water weigh? **A gallon of water weighs 8.34 pounds.

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Gallon is commonly used to measure the capacity of a liquid like water, oil and ink. The British value for gallon was made for 10 pounds of water which is now popular as 4.54609 L or 10.02 pounds. The US liquid gallon is 231 cubic inches or 3.785 L. This means there is 8.3444 pounds of water. The dry US gallon is 268.8025 cubic inches and 4.405 l. This means 9.711 pounds of water.

You have to remember this method to know how much does a gallon of water weight. One gallon is 3.75 liters of water. 1 liter is equal to 1 kilogram. 1 gallon is approximately 3.75 kilograms. Therefore, 1 kilogram is equal to 2.2 pounds. 3.75 kilograms multiplied by 2.2 pounds will give the result of how much water there is in a gallon.

**Calculation: **

1 gallon = 3.785 l

1 l =1 kg

1 gallon = 3.785 kg

1 kg =2.2 pounds

3.75 kg = 2.2 X 3.785 pounds

1 gallon = 8.33 pounds

**How much does 5 gallons of water weigh? **

5 gallons of water weigh 41.7 pounds

5 US fluid gallons is equal to 18.9270589 L. 1 gallon of water is equal to 3.78541178 liters and 5 gallons of water is equal to 8.9270589 liters. Since a liter of water has an index mass of 1, we can say that 1 l of water is 1 kg. 18.9270589 liters of water is equal to 18.9270589 kg because 3 kg of water is 3 liters, 50 kg of water is 50 liters. 5 gallons of water is equal to 18.9270589 kg. Let us convert it to pounds. We multiply 18.9270589 with 2.20462 which are 41.726972592118 pounds.

**Calculation: **

5 gallons = 18.9270589 Liters

1 gallon = (18.9270589 Liters / 5 gallons)

1 gallon = 3.78541178 liters

5 gallons = 5 X 3.78541178 liters

5 gallons = 18.9270589 liters

Index mass of 1 l of water = 1

1 l = 1kg

18.9270589 kg = 18.9270589 liters of water

5 gallons = 18.9270589 kg

Converting in pounds, 18.9270589 x 2.20462 = 41.726972592118 pounds

The calculation is different in case of salt water because they have more weight.

**How much does 10 gallons of water weigh?**

10 gallons of water weigh 80 pounds

There are 8 pounds of water in a gallon. One pound is one-eighth of a gallon or 0.125 gallons. We need to convert it to 100 pounds. It should be less than 100 gallons. It takes more pounds to get 1 gallon. We either multiply or divide by 8 because multiplying or dividing by 1 gets us nothing. We will divide by 8 in this case.

**Calculation: **

100 / 8 = 12.5 gallons

1000 X 0.125 = 12.5 gallons

For 10 gallons, 10 gallons X 8 = 80 pounds

Water with a specific gravity weighs 8.34 pounds as stated in the beginning.

You should know that pints and pounds are equal so you can say that there are 80 pints of water in 10 gallons.