Pressure Conversion Factors

Pressure: 1 psi = 6895 n/m3 = 6895 Pa = .069 bar = .069Kg/cm2

                1 in Hg = 25.4 mm Hg = .4912 psi = 3386 N/m3

                1 in H2O = 25.4 mm H2O = .0361 psi = 249.1 N/m2

                1 atmosphere = 14.7 psi = 29.92 in Hg = 760 mm Hg = 101.325 kN/m2

                1 bar = 14.504 psi = 100kN/m2 = 1.02 Kg/cm2

                1 foot head (water) = .433 psi

 

Liquid Pressure –Equivalents

Liquid Pressure

Lb/in3

(psi)

Ft Water

Kg/Cm2

Atmosphere

Bar

Inch Mercury

kPa

(kilopascal)

Lb/in3 (psi)

*

2.31

0.070

0.068

0.069

2.04

6.895

Ft Water

0.433

*

0.030

0.029

0.030

0.882

2.99

Kg/Cm2

14.2

32.8

*

0.968

0.981

29.0

98

Atmosphere

14.7

33.9

1.03

*

1.01

29.9

101

Bar

14.5

33.5

1.02

0.987

*

29.5

100

Inch Mercury

0.491

1.13

0.035

0.033

0.034

*

3.4

kPa (kilopascal)

0.145

0.335

0.01

0.009

0.01

0.296

*

Article Title:
Pressure Conversion Factors
Article Summary:
Conversions for PSI, FT Water, Kg/Cm2, Atmosphere, Bar, Inch Mercury, and kPa.
Article Date:
10/5/2009
Article ID:
841
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