One pound of pressure is equal to how many inches of water column?

One pound of pressure is equivalent to approximately 27.71 inches of water column. This relationship arises from the definition of pressure and how it can be measured in different units, including psi (pounds per square inch) and inches of water column (inH2O).

A water column is a measurement of pressure expressed by the height of a column of water that exerts a specific pressure at its base. The conversion factor is derived from the density of water and gravitational force, where the standard atmospheric pressure at sea level is about 14.7 psi, which equates to roughly 406.8 inches of water column.

Calculating the conversion, we find that 1 psi corresponds to about 27.71 inches of water column. Therefore, knowing this conversion helps in applications where both mechanical and hydraulic systems are involved, enabling practical understanding of pressure metrics in various contexts, such as HVAC systems, plumbing, and mechanical engineering.