How to convert

Pressure Units Converter

Unit Converter

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To:
Step 1Enter the value you want to convert in the “from” box.
Step 2Select the corresponding unit from the drop-down menu underneath it.
Step 3Select the unit to convert to, from the drop-down menu under the “to” box.
Step 4The conversion will be shown inside the “to” box.

Please note:

You can copy and paste values from the boxes.

Help on converting Pressure Units

The units of pressure most commonly used and converted are the following:

  • pascal (Pa), kilopascal (kPa), megapascal (MPa)
  • psi (pound per square inch)
  • torr (mmHg)
  • atm (atmospheric pressure)
  • bar

Wondering how to convert atm to mmHg and what is atm?

An atmosphere (atm) is a unit of measurement and equals to the air pressure at sea level, at a temperature of 15 Celsius.

  • atm to bar → 1 atm = 1.01325 bar
  • atm to psi → 1 atm = 14.6959 psi
  • atm to torr → 1 atm = 760 torr (mmHg)
  • atm to kPa → 1 atm = 101.325 kPa
  • atm to Pa → 1 atm = 101325 pascals
  • atm to MPa → 1 atm = 0.101325 MPa

Do you want to know what is bar and how to convert bar to psi in one simple move?

Bar is a metric pressure unit, although not a part of the official International System of Units (SI).

It equals to 100 kilopascals which is almost equal to the atmospheric pressure.

  • bar to millibar → 1 bar = 1000 millibars
  • bar to atm → 1 bar = 0.986923 atm
  • bar to psi → 1 bar = 14.5038 psi
  • bar to torr → 1 bar = 750.062 torr (mmHg)
  • bar to kPa → 1 bar = 100 kPa
  • bar to Pa → 1 bar = 100000 pascals
  • bar to MPa → 1 bar = 0.1 MPa
  • bar to inHg → 1 bar = 29.529983071 inHg
  • bar to kg/cm² → 1 bar = 1.019716213 kg/cm²

Interested in learning what is mmHg and how to convert it to other pressure units?

A millimeter of mercury is a manometric unit of pressure, defined as exactly 133.322387415 pascals.

  • mmHg to atm → 1 mmHg = 0.0013157858376511226 atm
  • mmHg to bar → 1 mmHg = 0.00133322 bar
  • mmHg to kPa → 1 mmHg = 0.133322 kPa
  • mmHg to Pa → 1 mmHg = 133.322 Pa

Do you know what is a Pa? Pascal is a unit of pressure in the metric system, equal to 1 newton per square meter. It has several multiples and sub-multiples that are formed using the standard SI units that are also commonly used.

Commonly used multiples of Pascal: hectopascal (hPa), kilopascal (kPa) and megapascal (MPa), Commonly used sub-multiples: milipascal (mPa), nanopascal (nPa) etc.

  • Pa to kPa → 1 pascal = 0.01 kPa
  • Pa to MPa → 1 pascal = 0.000001 MPa
  • Pa to atm → 1 pascal = 0.000009869 atm
  • Pa to bar → 1 pascal = 0.00001 bar
  • Pa to psi → 1 pascal = 0.000145 psi
  • Pa to torr → 1 pascal = 0.0075 torr (mmHg)

Learning how to convert psi to bar is rather easy!

Psi is a pressure unit and equals to the force of one pound applied to one square inch.

  • psi to atm → 1 psi = 0.068046 atm
  • psi to bar → 1 psi = 0.0689476 bar
  • psi to kpa → 1 psi = 6.89476 kPa
  • psi to Pa → 1 psi = 6894.76 pascals
  • psi to Mpa → 1 psi = 0.00689476 MPa
  • psi to torr → 1 psi = 51.715 torr (mmHg)
  • psi to inhg → 1 psi = 2.0360206576 inHg
  • psi to kg/cm² → 1 psi = 0.07030695783 kg/cm²