Kilogram per centimeter squared (Kg/cm²) is a pseudo unit of pressure using metric or SI units. The unit is often used because of the appearance of being similar to the English unit PSI (Lbf/in²). This is not a true unit of pressure, however, as pressure is defined as force per unit area; a kilogram is not a unit of force. Though, by multiplying the unit by the acceleration acting on it the unit can be converted into a true unit of pressure. In many cases the local gravitational acceleration is used, which at sea level on earth is equal to approximately 9.81 m/s²; By multiplying the unit by the acceleration and then multiplying by 10,000cm^2/m^2 in order to convert from square centimeter to square meter, keeping with S.I. units, the unit is converted to the SI derived unit Pascal (Pa), which is defined as Newton per meter squared (N/m²). A Newton is equal to a Kg*(m/s²), meaning that 1 Pascal equals 0.00001020 Kg/cm².