What is the approximate weight of one gallon of water?

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Multiple Choice

What is the approximate weight of one gallon of water?

Explanation:
A US gallon of water weighs about eight pounds because water’s density is about 1 kilogram per liter. A US gallon is 3.785 liters, so the mass is roughly 3.785 kilograms, which is about 8.34 pounds. Rounding to the nearest whole pound gives about eight pounds. That’s why eight pounds is the best approximate. The other values are just a bit off: seven underestimates, nine overestimates, and ten overestimates even more. (If you were using an Imperial gallon, the weight would be closer to nine pounds.)

A US gallon of water weighs about eight pounds because water’s density is about 1 kilogram per liter. A US gallon is 3.785 liters, so the mass is roughly 3.785 kilograms, which is about 8.34 pounds. Rounding to the nearest whole pound gives about eight pounds. That’s why eight pounds is the best approximate. The other values are just a bit off: seven underestimates, nine overestimates, and ten overestimates even more. (If you were using an Imperial gallon, the weight would be closer to nine pounds.)

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