Gas Law Constant

Common Value             Extended Accuracy Value

atm.cm³/(mol.K)                 82.0575                 8.21E+01
atm.ft³/(lbmol.K)               1.31443                 1.31E+00
atm.ft³/(lbmol.°R)              0.73024                 7.30E-01
atm.l/(mol.K)                   0.08206                 8.21E-02
bar.cm³/(mol.K)                 83.14472                8.31E+01
bar.l/(mol.K)                   0.08314472              8.31E-02
Btu/(lbmol.°R)                  1.9859                  1.99E+00
cal/(mol.K)                     1.9859                  1.99E+00
erg/(mol.K)                     83144720                8.31E+07
hp.h/(lbmol.°R)                 0.0007805               7.80E-04
inHg.ft³/(lbmol.°R)             21.85                   2.18E+01
J/(mol.K)                       8.314472                8.31E+00
J/(kmol.K)                      8314.472                8.31E+03
(kgf/cm²).l/(mol.K)             0.084784                8.48E-02
kPa.cm³/(mol.K)                 8314.472                8.31E+03
kWh/(lbmol.°R)                  0.000582                5.82E-04
lbf.ft/(lbmol.°R)               1545.349                1.55E+03
mmHg.ft³/(lbmol.K)              999                     9.99E+02
mmHg.ft³/(lbmol.°R)             555                     5.55E+02
mmHg.l/(mol.K)                  62.364                  6.24E+01
Pa.m³/(mol.K)                   8.314472                8.31E+00
psf.ft³/(lbmol.°R)              1545.349                1.55E+03
psi.ft³/(lbmol.°R)              10.73                   1.07E+01
Torr.cm³/(mol.K)                62364                   6.24E+04

Basis:   R = 8.314472  ±  0.000015   J/(mol.K)

See also http://www.physics.nist.gov/cuu/Constants/index.html “recommended values of the fundamental physical constants”.

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