1 btu/lbm · ºF = 4.1868 kJ/kg · K

1 btu/lbm · ºF = 1.000 cal/g · ºC

1 btu/lbm = 2324.0 J/kg

1 pie · lbf/lbm = 2.9890 J/kg

1 cal(IT) g · ºC = 4.1868 kJ/kg · K

1 kcal/g mol = 4.1840 x 103 kJ/kg mol