**Foot of water (39.2 °f)** is a unit of measurement of pressure or mechanical stress. The definition for foot of water (39.2 °f) is the following:

A conventional foot of mercury is approximately equal to 999.972 kg/m^{3} × 1 ft × *g*.

The symbol for foot of water (39.2 °F) is

**ftH**_{2}OFoot of water (39.2 °F) is compatible with the

pascal base unit.

*Please note: The equivalent value of foot of water (39.2 °F) in SI units is an approximation.*