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Conversion Tables


Specialty Gases and Equipment

(514) 956-7503
Conversion Tables

MULTIPLY BY TO OBTAIN
DENSITY
g/cm3 62.428 lb/ft3
  0.03613 lb/ln3
  8.345 lb/gal
lb/ft3 16.02 kg/m3
g-mol of ideal    
Gas @ 0ºC    
& 760 mm Hg 22.4140 ltr
lb/in3 1728 lb/ft3
  27.68 g/cm3
lb-mol of    
IdealGas @ 0ºC    
& 760 mm Hg 359.05 ft3
PRESSURE
atm 101.4 kPa
  760 mm of Hg
  29.921 in of Hg
  33.93 ft of H2O
  10332 kg/m2
  14.696 lb/in2
  2116.2 lb/ft2
  1.0133 bar
  1.0332 kg/cm2
bar 100 kPa
cm of Hg 5.3524 in of H2O
  0.4460 ft of H2O
  1.33 kPa
  0.1934 lb/in2
  27.845 lb/ft2
  135.95 kg/m2
ft of H2O 0.02947 atm
  0.4335 lb/in2
  62.378 lb/ft2
  2.99 kPa
in of Hg 0.03342 atm
  13.60 in of H2O
  1.133 ft of H2O
  3.389 kPa
  0.4912 lb/in2
  70.727 lb/ft2
  345.32 kg/m2
in of H2O 0.249 kPa
  0.03609 lb/in2
  5.1981 lb/ft2
  25.38 kg/m2
kg/cm2 0.9678 atm
  98.1 kPa
  14.22 lb/in2
lb/in2 70.31 g/cm2
  6.9 kPa
  2.036 in of Hg
  2.311 ft of H2O
FLOW
ft3/min 472 cm3/sec
  0.4719 ltr/sec
ft3/hr 7.87 cm3/sec
  28.31605 ltr/hr
ft3/sec 28.31605 ltr/sec
  1698.963 ltr/min
  28316.847 cm3/sec
gal/hr 6.3090 x 10-5 m3/min
  3.7854 ltr/hr
HEATING VALUE
Btu/ft3 0.037 J/cm3
Btu/lb 2.32444 J/g
VOLUME
cm3 0.001 Itr
  0.0610 in3
Hr 0.2642 gal
  0.0353 ft3
  1.0567 qt
  61.025 in3
ft3 28317 cm3
  1728 in3
  0.03704 yd3
  7.481 gal
  23.32 ltr
  0.028 m3
in3 16.387 cm3
  0.01639 ltr
  4.329 x 10-3 gal
  0.01732 qt
  1.6387 x 10-5 m3
MASS
lb 0.4536 kg
  453.59237 g
lb of H2O 0.01602 ft3
  27.68 in3
  0.1198 gal
oz 28.349527 g
ton (long) 1.016 x 103 kg
  2.24 x 103 lb
ton (short) 0.907 x 103 kg
  2 x 103 lb
VISCOSITY (Absolute)
P 1 g/cm sec
  1 dyn sec/cm2
  100 cP
cP 0.000672 lb/ft. sec
  0.0000209 lb sec/ft2
  2.42 lb/ft hr
VISCOSITY (Kinematic)
St 1 cm2/sec
  0.155 in2/sec
  0.001076 ft2/sec
  density P
TEMPERATURE
ºF = 1.8 (ºC) + 32
ºK = ºC + 273.5
ºR = ºF + 459.67

MISCELLANEOUS PHYSICAL CONSTANTS
CONSTANT NUMERICAL
VALUE		 UNITS
Avogadro's Number 6.0228 x 1023 molecules/g-mol
Gas-Law Constant R 1.987
1.987
82.06
0.08205
1545.3
0.7302
8.31432 x 103		 cal/(g-mol) (K)
Btu/(lb-mol) (ºR)
(cm3) (atm)/(g-mol) (K)
(ltr) (atm)/(g-mol)(K)
(ft3) (lb force)/(lb-mol) (ºR)
(ft3) (atm)/(lb-mol) (ºR)
J/(k-mol) (K)


Key
atm - atmosphere ft - foot in3 - cubic inches mm - millimeter
bar - bar ft2 - square feet J - joule m2 - square meter
Btu - British thermal unit ft3 - Cubic feet ºK - degree Kelvin m3 - cubic meter
ºC - degrees Centigrade g - gram kg - kilogram oz - ounce
cal - calorie, thermochemical gal - gallon kPa - Kilopascals P - poise
cP - centipoise g-mol - gram mole k-mol - kilo mole qt - quart
cm - centimeter hr - hour ltr - liter ºR - degrees Rankine
cm2 - square centimeter Hg - Mercury lb - pound sec - second
cm3 - cubic centimeter H2O - water lb-mol - pound mole St - Stokes
dyn - dyne in - inch m - meter yd3 - cubic yard
ºF - degrees Fahrenheit in2 - square inch min - minute  
 

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This page was last updated December 05, 2003