Pressure unit conversion

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Common pressure unit conversions include Pa, KPa, MPa, atmospheric pressure, kilogram (kgf/cm2), mmHg, mbar, bar, PSI, etc. The approximate conversion relationships are as follows: 1 MPa = 1000 KPa; 1 KPa = 1000 Pa; 1 KPa = 10 mbar; 1 bar = 1000 mbar; 1 PSI = 6.895 KPa; 1 atmosphere = 100 KPa = 0.1 MPa = 1 bar; 1 atmosphere = 1 kilogram-force per square centimeter (kgf/cm2) = 760 mmHg; 1 atmosphere = 14.5 PSI; 1 MPa = 10.19718 kgf/cm2 = 145.03725 psi = 10 bars; 1 bar = 100,000 Pa = 10 Newtons per square centimeter. It is a unit of pressure. In meteorology, millibars were commonly used in the past, but now the equivalent international unit of hectopascals is used instead. 1 Pa is short for 1 Pascal, which means a force of one Newton acting on one square meter. Since engineers still use the unit of kilogram-force, with 1 kilogram equaling 9.80665 Newtons, the engineering atmosphere is derived as follows: 1 engineering atmosphere = 1 kilogram-force per square centimeter = 0.967841 atmospheres = 98,066.5 Pascals. Millimeters of mercury is also a commonly used unit of pressure; the pressure generated by 1 millimeter of mercury is defined as a torr. 1 torr = 1 millimeter of mercury = 133.32 pascals. 1 atmosphere = 760 torr