How much does one cubic foot of water at 68° F weigh?

One cubic foot of water at 68° F weighs approximately 62 pounds. This value is derived from the standard density of water, which is about 62.4 pounds per cubic foot at a temperature around 68° F.

Water's density can vary slightly with temperature, but for practical purposes in common measurements, using 62 pounds for one cubic foot at this temperature is generally accepted. This measurement is important in various fields, including construction, plumbing, and HVAC systems, where knowing the weight of water is crucial for calculations regarding load-bearing and system designs. The other weights listed do not reflect the commonly accepted density of water at this temperature, making them less relevant in determining the correct answer.