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Pressure Conversion

Vacuum Technology Conversion

Factors in boldface are exact

Conversion Factors for PRESSURE or STRESS (FORCE DIVIDED BY AREA)


To convert from                               to                         Multiply by   
atmosphere, standard (atm)                    pascal (Pa)                1.013 25 E+05 
atmosphere, standard (atm)                    kilopascal (kPa)           1.013 25 E+02 
atmosphere, technical (at)                    pascal (Pa)                9.806 65 E+04 
atmosphere, technical (at)                    kilopascal (kPa)           9.806 65 E+01 
bar (bar)                                     pascal (Pa)                1.0 E+05      
bar (bar)                                     kilopascal (kPa)           1.0 E+02      
centimeter of mercury (0°C)                   pascal (Pa)                1.333 22 E+03 
centimeter of mercury (0°C)                   kilopascal (kPa)           1.333 22 E+00 
centimeter of mercury, conventional (cmHg)    pascal (Pa)                1.333 224 E+03
centimeter of mercury, conventional (cmHg)    kilopascal (kPa)           1.333 224 E+00
centimeter of water (4°C)                     pascal (Pa)                9.806 38 E+01 
centimeter of water, conventional (cmH²O)     pascal (Pa)                9.806 65 E+01 
dyne per square centimeter (dyn/cm²)          pascal (Pa)                1.0 E-01      
foot of mercury, conventional (ftHg)          pascal (Pa)                4.063 666 E+04
foot of mercury, conventional (ftHg)          kilopascal (kPa)           4.063 666 E+01
foot of water (39.2°F)                        pascal (Pa)                2.988 98 E+03 
foot of water (39.2°F)                        kilopascal (kPa)           2.988 98 E+00 
foot of water, conventional (ftH²O)           pascal (Pa)                2.989 067 E+03
foot of water, conventional (ftH²O)           kilopascal (kPa)           2.989 067 E+00
gram-force per square centimeter (gf/cm²)     pascal (Pa)                9.806 65 E+01 
inch of mercury (32°F)                        pascal (Pa)                3.386 38 E+03 
inch of mercury (32°F)                        kilopascal (kPa)           3.386 38 E+00 
inch of mercury (60°F)                        pascal (Pa)                3.376 85 E+03 
inch of mercury (60°F)                        kilopascal (kPa)           3.376 85 E+00 
inch of mercury, conventional (inHg)          pascal (Pa)                3.386 389 E+03
inch of mercury, conventional (inHg)          kilopascal (kPa)           3.386 389 E+00
inch of water (39.2°F)                        pascal (Pa)                2.490 82 E+02 
inch of water (60°F)                          pascal (Pa)                2.4884 E+02   
inch of water, conventional (inH²O)           pascal (Pa)                2.490 889 E+02
kilogram-force per square                                                              
centimeter (kgf/cm²)                          pascal (Pa)                9.806 65 E+04 
kilogram-force per square                                                              
centimeter (kgf/cm²)                          kilopascal (kPa)           9.806 65 E+01 
kilogram-force per square meter (kgf/m²)      pascal (Pa)                9.806 65 E+00 
kilogram-force per square                                                              
millimeter (kgf/mm²)                          pascal (Pa)                9.806 65 E+06 
kilogram-force per square                                                              
millimeter (kgf/mm²)                          megapascal (MPa)           9.806 65 E+00 
kip per square inch (ksi) (kip/in²)           pascal (Pa)                6.894 757 E+06
kip per square inch (ksi) (kip/in²)           kilopascal (kPa)           6.894 757 E+03
millibar (mbar)                               pascal (Pa)                1.0 E+02      
millibar (mbar)                               kilopascal (kPa)           1.0 E-01      
millimeter of mercury, conventional (mmHg)    pascal (Pa)                1.333 224 E+02
millimeter of water, conventional (mmH²O)     pascal (Pa)                9.806 65 E+00 
poundal per square foot                       pascal (Pa)                1.488 164 E+00
pound-force per square foot (lbf/ft²)         pascal (Pa)                4.788 026 E+01
pound-force per square inch (psi) (lbf/in²)   pascal (Pa)                6.894 757 E+03
psi (pound-force per square inch) (lbf/in²)   pascal (Pa)                6.894 757 E+03
torr (Torr)                                   pascal (Pa)                1.333 224 E+02

Copyright (c) 1999 2009 N C Ricketts All rights reserved. Last revised: December 20, 2008