Hydraulic head is a specific measurement of liquid pressure above a geodetic datum. Head is expressed in units of a height such as meters or feet. Kilogram Force per Square Centimeter (sq cm) is a pressure unit. The unit is the metric equivalent of pounds per square inch (psi). Here is an online head meter to kg/cm2 Converter that helps you to convert the head in meters to the pressure of unit kilogram/square centimeter (sq cm) based on the specific gravity.