PRESSURE VACUUM CONVERSION FACTORS

PRESSURE VACUUM CONVERSION FACTORS
Multiply
by
To Obtain
Multiply
by
To Obtain
at
0.967841
atm
in Hg (0°C)
0.033421
atm
atm
1.0132501
bar
in Hg (0°C)
0.0833334
ft H2O (4°C)
atm
1033.2276
gf/cm2
in Hg (0°C)
13.5951
in H2O (4°C)
atm
33.898539
ft H2O (4°C)
in Hg (0°C)
3.38638
kPa
atm
406.64355
in H2O (4°C)
in Hg (0°C)
0.0345315
kgf/cm2
atm
atm
29.92469
1.0332275
in Hg (0°C)
kgf/cm2
in Hg (0°C)
in Hg (0°C)
345.31466
70.726017
kgf/m2
lb/ft2 (dif)
atm
10332.275
kgf/m2
in Hg (0°C)
33.863887
mbar
atm
atm
atm
atm
atm
101.32501
14.695949
kPa
psi (dif)
in Hg (0°C)
in Hg (0°C)
25.4
0.4911529
mm Hg (0°C)
psi (dif)
68087.256
760.0021
14.69595
lb/ft2 (dif)
mm Hg (0°C)
psi (dif)
kgf/cm2
kgf/cm2
kgf/cm2
0.9678411
98.0665
14.223343
atm
kPa
psi (dif)
bar
401.46308
in H2O (4°C)
kPa
0.0098692
atm
bar
bar
bar
29.529983
100
14.503774
in Hg (0°C)
kPa
psi (dif)
kPa
kPa
kPa
4.0146308
0.2952998
0.1450377
in H2O (4°C)
in Hg (0°C)
psi (dif)
cm Hg (0°C)
5.3525345
in H2O (4°C)
mbar
0.0145038
psi (dif)
cm Hg (0°C)
0.4460451
ft H2O (4°C)
oz/in2
0.0625
psi (dif)
cm Hg (0°C)
cm Hg (0°C)
cm Hg (0°C)
1.33322
0.1933672
27.844879
kPa
psi (dif)
lb/ft2 (dif)
psia
psia
psia
0.068046
70.306958
6.8947573
atm
gf/cm2
kPa
cm Hg (0°C)
0.0135951
kgf/cm2
psia
27.679905
in H2O (4°C)
ft H2O (4°C)
0.0294989
atm
psia
2.0360207
in Hg (0°C)
ft H2O (4°C)
0.8826452
in Hg (0°C)
psi (dif)
0.068046
atm
ft H2O (4°C)
0.4335149
psi (dif)
psi (dif)
68.947573
mbar
ft H2O (4°C)
62.426145
lbf/ft (dif)
psi (dif)
70.306958
gf/cm2
ft H2O (4°C)
2.98898
kPa
psi (dif)
2.3067258
ft H2O (4°C)
in H2O (4°C)
0.249082
kPa
psi (dif)
27.679905
in H2O (4°C)
in H2O (4°C)
0.0735539
in Hg (0°C)
psi (dif)
6.8947573
kPa
in H2O (4°C)
0.0361273
psi (dif)
Torr
0.0013158
atm
in H2O (4°C)
5.2021857
lb/ft2 (dif)
Torr
0.0393701
in Hg (0°C)
2
Abbreviations Key
at … technical atm
dif … differential
in … inch
mbar … millibar
atm … standard atmosphere
Ba … barye
bar … bar
ft … foot
ft2… square foot
gf … gram-force
in … square inch
lb … pound
kgf … kilogram-force
m2… square meter
mm … millimeter
oz … ounce
cm … centimeter
H2O … water
kPa … kilopascal
psi … lb per in2
cm2… square centimeter
Hg … mercury
lbf… pound-force
psi (dif) … aka psid
2