Gas Turbine Handbook : Principles and Practices

Appendix C 375
Appendix C-10
Conversion Factors
TO OBTAIN MULTIPLY BY
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bars atmospheres 1.0133
cm Hg @ 32°F (0°C) atmospheres 76.00
ft of water @ 40°F (4°C) atmospheres 33.90
in. Hg @ 32°F (0°C) atmospheres 29.92
in Hg @ 60°F (15°C) atmospheres 30.00
lb/sq. ft atmospheres 2,116
lb/sq. in. atmospheres 14.696
cm Hg @ 32°F (0°C) bars 75.01
in. Hg @ 32°F (0°C) bars 29.53
lb/sq ft. bars 2088
lb/sq in. bars 14.50
ft-lb Btu 778.26
Horsepower-hr Btu 3.930 × 10 –4
joules Btu 1055
kilogram calories Btu 2.520 × 10 –1
kilowatt-hr Btu 2.930 × 10 –4
grams carats 2.0 × 10 –1
ounces carats 7.055 × 10 –3
ft. centimeters 3.281 × 10 –2
in. centimeters 3.937 10 –1
kilogram/hr m centipoise 3.60
lb/sec ft centipoise 6.72 × 10 –4
Poise centipoise 1 × 10 –2
ft of water @ 40°F (4°C) cm Hg 4.460 × 10 –1
in. H 2 O @ 40°F (4°C) cm Hg 5.354
kilogram/sq m. cm Hg 135.95
lb/sq. in. cm Hg 1.934 × 10 –1
lb/sq./ft cm Hg 27.85
ft/sec cm/sec 3.281 × 10 –2
mph cm/sec 2.237 × 10 –2
cu in. cu cm (dry) 6.102 × 10 –2