Pressure

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Pressure

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Pa
(N m-2)

bar
 

mbar
 

µbar
(dyn cm-2)

Torr
(mm Hg)

micron
(µ, mTorr)

atm
 

psi
(lbf inch-2)

psf
(lbf ft-2)

Pa (N m-2)

1

1·10-5

1·10-2

10

7.5·10-3

7.5

9.87·10-6

1.45·10-4

2.09·10-2

bar

1·105

1

1000

1·106

750

7.5·105

0.987

14.5

2.09·103

mbar

100

1·10-3

1

1000

0.75

750

9.87·10-4

1.45·10-2

2.09

µbar (dyn cm-2)

0.1

1·10-6

1·10-3

1

7.5·10-4

0.75

9.87·10-7

1.45·10-5

2.09·10-3

Torr (mm Hg)

133

1.33·10-3

1.33

1330

1

1000

1.32·10-3

1.93·10-2

2.78

micron (µ,mTorr)

0.133

1.33·10-6

1.33·10-3

1.33

1·10-3

1

1.32·10-6

1.93·10-5

2.78·10-3

atm

1.01·105

1.013

1013

1.01·106

760

7.6·105

1

14.7

2.12·103

psi (lbf inch-2)

6.89·103

6.89·10-2

68.9

6.89·104

51.71

5.17·104

6.8·10-2

1

144

psf (lbf ft-2)

47.8

4.78·10-4

0.478

478

0.359

359

4.72·10-4

6.94·10-3

1