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Conversion Factors
2
APPENDIX
Conversion Factors Length 1 m ¼ 39.37 inches ¼ 106 mm ¼ 1010 A 1 inch ¼ 2.54 cm 1 ft ¼ 30.48 cm ¼ 0.3048 m 1 mile ¼ 5280 ft ¼ 1760 yds ¼ 1609.344 m
Energy 1 J ¼ 1 W.s ¼ 1 kg m2/s ¼ 1 N.m3 ¼ 107 dyne.cm ¼ 107 erg 1 Btu ¼ 778 ft.lbf ¼ 252 cal ¼ 1055 J ¼ 10.41 lit.atm 1 HP. hr ¼ 2545 Btu 1 kW. hr ¼ 3412 Btu ¼ 1.341 HP. hr
Mass 1 lbm ¼ 453.6 gr ¼ 0.4536 kg ¼ 7000 grain 1 kg ¼ 1000 gr ¼ 2.2046 lbm 1 slug ¼ 1 lbf s2/ft ¼ 32.174 lbm 1 U.S. ton ¼ 2000 lbm (also called short ton) 1 long ton ¼ 2240 lbm (also called British ton) 1 tonne ¼ 1000 kg (also called metric ton)
Power 1 HP ¼ 550 ft.lbf/s ¼ 33000 ft. lbf/min ¼ 746 W ¼ 0.746 kW
Force 1 lbf ¼ 4.448 N ¼ 4.448 105 dynes ¼ 32.174 poundals ¼ 32.174 lbm.ft/s2 ¼ 1 lbw Pressure 1 atm ¼ 14.696 psia ¼ 2116 lbf/ft2 ¼ 29.92 in Hg ¼ 760 mm Hg ¼ 760 Torr ¼ 1.013 bar ¼ 33.9 ft H2O ¼ 1.013 105 Pa ¼ 101.3 kPa 1 Pa ¼ 1 N/m2 ¼ 10- 5 bars
Gas Constant R ¼ 1.9859 Btu/lbmole R ¼ 1.9859cal/grmole. K ¼ 0.73024 atm ft3/lbmole. R ¼ 1545.3 ft.lbf/lbmole. R ¼ 10.732 psia.ft3/lbmole. R ¼ 0.082057 lit. atm/grmole. K ¼ 82.057 atm. cm3/grmole. K ¼ 8314.5 Pa.m3/kgmole. K or J/kg mole. K ¼ 8.3145 kJ/kg mole. K Dynamic Viscosity 1 cp ¼ 0.01 Poise ¼ 0.01 g/cm s ¼ 0.01(dyne.s)/cm2 ¼ 0.001 kg/m.s ¼ 0.001 Pa.s ¼ 0.001 N.s/m2 ¼ 2.42 lbm/ft.hr ¼ 0.0752 slug/ft.hr ¼ 6.72 10- 4 lbm/ft.s ¼ 2.09 10- 5 lbf.s/ft2 1 Pa.s ¼ 0.0209 lbf.s/ft2 ¼ 0.672 lbm/ft.s
743
744
Handbook of Natural Gas Transmission and Processing
Volume 1 ft3 ¼ 7.4805 U.S. gal¼ 6.23 Imperial gal ¼ 28.317 lit 1 m3 ¼ 1000 lit ¼ 264.2 U.S. gal ¼ 35.31 ft3 1 bbl¼ 42 U.S. gal (oil)¼ 5.615 ft3 1 lit ¼ 1000 cc
Kinematic Viscosity 1 St ¼ 1 cm2/s ¼ 0.0001 m2/s 1 ft2/s ¼ 929 St ¼ 0.0929 m2/s
Density Water¼ 62.43 lbm/ft3 ¼ 1000 kg/m3 ¼ 1 gr/cm3 ¼ 8.346 lbm/U.S. gal mercury ¼ 13.6 gr/cm3
Acceleration Due to Gravity g ¼ 32.2 ft/s2 ¼ 9.81 m/s2 ¼ 981 cm/s2 (varies very slightly with longitude and elevation)
Temperature F ¼ 1.8 ( C)þ 32 R¼ F þ 459.67¼ 1.8 ( K)
Force-Mass Conversion Factor gc ¼ 1 kg.m/s2.N ¼ 1 g cm/s2.dyne ¼ 32.174 lbm.ft/s2.lbf¼ 1 slug.ft/s2.lbf
APPENDIX
Conversion Factors Length 1 m ¼ 39.37 inches ¼ 106 mm ¼ 1010 A 1 inch ¼ 2.54 cm 1 ft ¼ 30.48 cm ¼ 0.3048 m 1 mile ¼ 5280 ft ¼ 1760 yds ¼ 1609.344 m
Energy 1 J ¼ 1 W.s ¼ 1 kg m2/s ¼ 1 N.m3 ¼ 107 dyne.cm ¼ 107 erg 1 Btu ¼ 778 ft.lbf ¼ 252 cal ¼ 1055 J ¼ 10.41 lit.atm 1 HP. hr ¼ 2545 Btu 1 kW. hr ¼ 3412 Btu ¼ 1.341 HP. hr
Mass 1 lbm ¼ 453.6 gr ¼ 0.4536 kg ¼ 7000 grain 1 kg ¼ 1000 gr ¼ 2.2046 lbm 1 slug ¼ 1 lbf s2/ft ¼ 32.174 lbm 1 U.S. ton ¼ 2000 lbm (also called short ton) 1 long ton ¼ 2240 lbm (also called British ton) 1 tonne ¼ 1000 kg (also called metric ton)
Power 1 HP ¼ 550 ft.lbf/s ¼ 33000 ft. lbf/min ¼ 746 W ¼ 0.746 kW
Force 1 lbf ¼ 4.448 N ¼ 4.448 105 dynes ¼ 32.174 poundals ¼ 32.174 lbm.ft/s2 ¼ 1 lbw Pressure 1 atm ¼ 14.696 psia ¼ 2116 lbf/ft2 ¼ 29.92 in Hg ¼ 760 mm Hg ¼ 760 Torr ¼ 1.013 bar ¼ 33.9 ft H2O ¼ 1.013 105 Pa ¼ 101.3 kPa 1 Pa ¼ 1 N/m2 ¼ 10- 5 bars
Gas Constant R ¼ 1.9859 Btu/lbmole R ¼ 1.9859cal/grmole. K ¼ 0.73024 atm ft3/lbmole. R ¼ 1545.3 ft.lbf/lbmole. R ¼ 10.732 psia.ft3/lbmole. R ¼ 0.082057 lit. atm/grmole. K ¼ 82.057 atm. cm3/grmole. K ¼ 8314.5 Pa.m3/kgmole. K or J/kg mole. K ¼ 8.3145 kJ/kg mole. K Dynamic Viscosity 1 cp ¼ 0.01 Poise ¼ 0.01 g/cm s ¼ 0.01(dyne.s)/cm2 ¼ 0.001 kg/m.s ¼ 0.001 Pa.s ¼ 0.001 N.s/m2 ¼ 2.42 lbm/ft.hr ¼ 0.0752 slug/ft.hr ¼ 6.72 10- 4 lbm/ft.s ¼ 2.09 10- 5 lbf.s/ft2 1 Pa.s ¼ 0.0209 lbf.s/ft2 ¼ 0.672 lbm/ft.s
743
744
Handbook of Natural Gas Transmission and Processing
Volume 1 ft3 ¼ 7.4805 U.S. gal¼ 6.23 Imperial gal ¼ 28.317 lit 1 m3 ¼ 1000 lit ¼ 264.2 U.S. gal ¼ 35.31 ft3 1 bbl¼ 42 U.S. gal (oil)¼ 5.615 ft3 1 lit ¼ 1000 cc
Kinematic Viscosity 1 St ¼ 1 cm2/s ¼ 0.0001 m2/s 1 ft2/s ¼ 929 St ¼ 0.0929 m2/s
Density Water¼ 62.43 lbm/ft3 ¼ 1000 kg/m3 ¼ 1 gr/cm3 ¼ 8.346 lbm/U.S. gal mercury ¼ 13.6 gr/cm3
Acceleration Due to Gravity g ¼ 32.2 ft/s2 ¼ 9.81 m/s2 ¼ 981 cm/s2 (varies very slightly with longitude and elevation)
Temperature F ¼ 1.8 ( C)þ 32 R¼ F þ 459.67¼ 1.8 ( K)
Force-Mass Conversion Factor gc ¼ 1 kg.m/s2.N ¼ 1 g cm/s2.dyne ¼ 32.174 lbm.ft/s2.lbf¼ 1 slug.ft/s2.lbf