Pressure Units<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

pascal
(Pa)

bar
(bar)

technical atmosphere
(at)

atmosphere
(atm)

torr
(Torr)

pound-force per
square inch
(psi)

1 Pa

≡ 1 N/m²

10^?5

1.0197×10^?5

9.8692×10^?6

7.5006×10^?3

145.04×10^?6

1 bar

100,000

≡ 10⁶ dyn/cm²

1.0197

0.98692

750.06

14.5037744

1 at

98,066.5

0.980665

≡ 1 kgf/cm²

0.96784

735.56

14.223

1 atm

101,325

1.01325

1.0332

≡ 1 atm

760

14.696

1 torr

133.322

1.3332×10^?3

1.3595×10^?3

1.3158×10^?3

≡ 1 Torr; ≈ 1 mmHg

19.337×10^?3

1 psi

6.894×10³

68.948×10^?3

70.307×10^?3

68.046×10^?3

51.715

≡ 1 lbf/in²