1 cubic foot of water weighs approximately how many pounds?

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Multiple Choice

1 cubic foot of water weighs approximately how many pounds?

A cubic foot of water has a fairly precise weight because water’s density is well known. One cubic foot holds about 7.48 gallons, and each gallon of water weighs roughly 8.34 pounds. Multiplying 7.48 by 8.34 gives about 62 pounds, typically cited as 62.4 pounds per cubic foot at standard conditions. So the weight of a cubic foot of water is around 62 pounds, not 16, 8.34, or 100. The 8.34 pounds figure is the weight of one gallon, while 62.5 pounds is the closest practical match for a cubic foot.

A cubic foot of water has a fairly precise weight because water’s density is well known. One cubic foot holds about 7.48 gallons, and each gallon of water weighs roughly 8.34 pounds. Multiplying 7.48 by 8.34 gives about 62 pounds, typically cited as 62.4 pounds per cubic foot at standard conditions. So the weight of a cubic foot of water is around 62 pounds, not 16, 8.34, or 100. The 8.34 pounds figure is the weight of one gallon, while 62.5 pounds is the closest practical match for a cubic foot.

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