Pressure units Conversion


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Pressure Units

Standard units
Pa : pascal
kPa : kilopascal
MPa : megapascal
bar : bar
mbar : millibar

Imperial System
psi : pound-force per square inch

Mercury units
mmHg : mm of mercury
inHg : inch of mercury
torr : torr

Atmosphere units
atm : normal atmosphere
at : technical atmosphere

Pressure Unit Conversion Tables

Standard units / Standard units
# Pa kPa MPa bar mbar
1 Pa = 10.0011.0e-61.0e-50.01
1 kPa = 100010.0010.0110
1 MPa = 1.0e+6100011010000
1 bar = 1000001000.111000
1 mbar = 1000.10.00010.0011

Standard units / Imperial System
# psi
1 Pa = 0.0001
1 kPa = 0.145
1 MPa = 145.0377
1 bar = 14.5038
1 mbar = 0.0145

Standard units / Mercury units
# mmHg inHg torr
1 Pa = 0.00750.00030.0075
1 kPa = 7.50060.29537.5006
1 MPa = 7500.6376295.29987500.6376
1 bar = 750.063829.53750.0638
1 mbar = 0.75010.02950.7501

Standard units / Atmosphere units
# atm at
1 Pa = 9.8692e-61.0197e-5
1 kPa = 0.00990.0102
1 MPa = 9.869210.1972
1 bar = 0.98691.0197
1 mbar = 0.0010.001

Imperial System / Standard units
# Pa kPa MPa bar mbar
1 psi = 6894.766.89480.00690.068968.9476

Imperial System / Mercury units
# mmHg inHg torr
1 psi = 51.71512.03651.7151

Imperial System / Atmosphere units
# atm at
1 psi = 0.0680.0703

Mercury units / Standard units
# Pa kPa MPa bar mbar
1 mmHg = 133.3220.13330.00010.00131.3332
1 inHg = 3386.3893.38640.00340.033933.8639
1 torr = 133.3220.13330.00010.00131.3332

Mercury units / Imperial System
# psi
1 mmHg = 0.0193
1 inHg = 0.4912
1 torr = 0.0193

Mercury units / Mercury units
# mmHg inHg torr
1 mmHg = 10.03941
1 inHg = 25.4001125.4001
1 torr = 10.03941

Mercury units / Atmosphere units
# atm at
1 mmHg = 0.00130.0014
1 inHg = 0.03340.0345
1 torr = 0.00130.0014

Atmosphere units / Standard units
# Pa kPa MPa bar mbar
1 atm = 1.0132e+5101.3250.10131.01321013.25
1 at = 98066.598.06650.09810.9807980.665

Atmosphere units / Imperial System
# psi
1 atm = 14.6959
1 at = 14.2233

Atmosphere units / Mercury units
# mmHg inHg torr
1 atm = 760.002129.9213760.0021
1 at = 735.561328.959735.5613

Atmosphere units / Atmosphere units
# atm at
1 atm = 11.0332
1 at = 0.96781

See also

Pressure Calculators
Unit conversion