How many pounds are in a cubic foot of water?

The weight of water is commonly defined as approximately 62.4 pounds per cubic foot at standard temperature and pressure conditions. This measurement is essential for various applications in plumbing and pipefitting because understanding the density of water helps professionals calculate the weight of water in piping systems, choose appropriate materials, and ensure safety in handling and transporting water.

In pipefitting, knowing that a cubic foot of water weighs 62.4 pounds allows for precise calculations of water pressure and the load that pipelines and fixtures must bear. This figure assists in designing systems efficiently, ensuring both structural integrity and functionality. The value is widely used across various engineering and construction disciplines, making it a fundamental piece of knowledge for anyone in the field.

The other choices represent either incorrect values or refer to the weight of water in different units, such as gallons, rather than cubic feet, which makes them unsuitable for this context.