1 bar = 1 x 10-5 Pa (pascal) = 1 x 10-5 N/m2
1 lb/pulg2 abs = 1 lbf/pulg2
1 lb/pulg2 abs = 2.0360 pulg de Hg a 0 ºC
1 lb/pulg2 abs = 2.311 pie de H2O a 70 ºF
1 lb/pulg2 abs = 51.715 mm de Hg a 0 ºC (ρHg = 13.5955 g/cm3)
1 atm = 14.696 lb/pulg2 abs = 1.01325 x 105 N/m2 = 1.01325 bar
1 atm = 760 mm de Hg a 0 ºC = 1.01325 x 105 Pa
1 atm = 29.921 pulg de Hg a 0 ºC
1 atm = 33.90 pie de H2O a 4 ºF
1 lb/pulg2 abs = 6.89476 x 104 g/cm · s2
1 lb/pulg2 abs = 6.89476 x 104 dina/cm2
1 dina/cm2 = 2.0886 x 10-3 lbf/pie2
1 lb/pulg2 abs = 6.89476 x 103 N/m2 = 6.89476 x 103 Pa
1 lbf/pie2 = 4.7880 x 102 dina/cm2 = 47.880 N/m2
1 mm de Hg (0 ºC) = 1.333224 x 102 N/m2 = 0.1333224 kPa