Learn about the SI unit of pressure , pascal, and other common units of pressure such as bar, atmosphere, torr, and psi. See how to convert between different units of pressure with examples and a conversion table. The SI Unit of Pressure is Pascal (Pa), which is Nm² The formula for calculating pressure = force/area. The SI Unit of measuring force is 'Newton' (N) and the SI Unit of measuring area is 'm²' Learn the unit of pressure in physics: SI unit , symbols, formulas, and conversions with exam-focused examples. Master pressure units for success. Units of Pressure Measurement The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m 2). The SI adopted the name pascal as the unit of pressure in 1971. When indicated, the zero reference is stated in parenthesis following the unit , for example 101 kPa (abs). Atmospheric pressures are often stated using hectopascal (hPa), kilopascal (kPa), millibar (mbar) or atmospheres (atm). It is worth noting that pound per square inch (psi) is still used in many situations ...
