壓力單位換算表

壓力單位換算表

Pressure Unit Conversion Table:

  atm ata
( kg / cm2 )
Torr
( mm Hg)
in Hg mm water
atm 1 1.033 760 29.92 1.034x104
ata
( kg / cm2 )
0.968 1 736 28.96 104
Torr
( mm Hg)
1.316x10-3 1.36x10-3 1 3.937x10-2 13.6
in Hg 3.342x10-2 3.453x10-2 25.4 1 345.4
mm water 9.67x10-5 10-4 7.36x10-2 2.895x10-3 1
in water 2.456x10-3 2.54x10-3 1.868 7.36x10-2 25.4
bar 0.9872 1.02 750 29.53 1.02x104
Mpa 9.872 10.2 7500 295.3 1.02x105
kPa 0.987x10-2 0.01 7.5 0.2953 102
psi
( Ib/in2)
6.8x10-2 7.031x10-2 51.5 2.035 703.1
  in water bar Mpa kPa psi
( lb/in2)
atm 407.1 1.013 0.1013 1.013x102 14.7
ata
( kg / cm2 )
393.7 0.981 9.81x10-2 98.1 14.22
Torr
( mm Hg)
0.535 1.333x10-3 1.333x10-4

0.1333

1.94x10-2
in Hg 13.6 3.387x10-2 3.387x10-3 3.387 0.491
mm water 3.937x10-2 9.81x10-5 9.81x10-6 9.81x10-3 1.422x10-3
in water 1 2.49x10-3 2.49x10-4 0.249 3.613x10-2
bar 401.6 1 0.1 102 14.5
Mpa 4016 10 1 103 145
kPa 4.016 10-2 10-3 1 0.145
psi
( lb/in2)
27.68 6.893x10-2 6.893x10-3 6.893 1
查表法 ( Look-up method ):
1 in Hg=25.4 Torr(mm Hg)
1 bar= 1.02 ata
1 atm= 14.7 psi
1 bar=1 00 kPa= 1.02 kg / cm2 = 14.5 psi