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## How to use ES Systems’ pressure conversion tool

This pressure units converter can be used to convert one pressure measurement unit to another.

Step 1: Enter the value you want to convert in the “from” box.

Step 2: Select the corresponding unit from the drop-down menu underneath it.

Step 3: Select the unit to convert to, from the drop-down menu under the “to” box.

Step 4: The conversion will be shown inside the “to” box.

Please note: You can copy and paste values from the boxes.

## How to convert 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

### How to convert atm to other pressure units

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

### How to convert bar to other pressure units

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

### How to convert Milimeters of Mercury to other pressure units

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

### How to convert Pascal (Pa) to other pressure units

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)

### How to convert Psi (Pound Force Per Square Inch) to other pressure units

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