Pressure Converter
Convert between different units of pressure including pascal, psi, bar, atmosphere, and more. Enter a value and select units to convert from and to.
Conversion Results
1 bar
100 kilopascal [kPa]
Common Conversions:
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Pressure Unit Definitions
Pressure is the amount of force applied perpendicular to the surface of an object per unit area. Below are definitions for common pressure units:
SI Units
- Pascal (Pa): The SI derived unit of pressure, equal to one newton per square meter.
- Kilopascal (kPa): Equal to 1,000 pascals.
- Bar: Equal to 100,000 pascals, slightly less than the average atmospheric pressure on Earth at sea level.
- Megapascal (MPa): Equal to 1,000,000 pascals, commonly used in material science and engineering.
Imperial/US Units
- Pound per square inch (psi): The pressure resulting from a force of one pound-force applied to an area of one square inch.
- Ksi: Kilopound per square inch, equal to 1,000 psi.
- Pound-force per square foot: The pressure resulting from a force of one pound-force applied to an area of one square foot.
Atmospheric Pressure
- Atmosphere (atm): Standard atmospheric pressure, defined as 101,325 Pa.
- Technical atmosphere (at): Equal to one kilogram-force per square centimeter (98.0665 kPa).
- Torr: Named after Evangelista Torricelli, equal to 1/760 of an atmosphere.
Other Units
- Millimeter of mercury (mmHg): The pressure exerted by a column of mercury 1 mm high.
- Inch of mercury (inHg): The pressure exerted by a column of mercury 1 inch high.
- Inch of water (inAq): The pressure exerted by a column of water 1 inch high.
- Barye (Ba): The CGS unit of pressure, equal to 1 dyne per square centimeter.
How to Use This Pressure Converter
To convert between pressure units:
- Enter the value you want to convert in the "Value" field
- Select the unit you're converting from in the "From Unit" dropdown
- Select the unit you're converting to in the "To Unit" dropdown
- Click the "Convert" button to see the result
Common Pressure Conversion Factors
Here are some useful conversion factors for common pressure units:
- 1 bar = 100,000 Pa = 0.987 atm = 14.5038 psi
- 1 atm = 101,325 Pa = 1.01325 bar = 14.6959 psi
- 1 psi = 6,894.76 Pa = 0.0689476 bar = 0.068046 atm
- 1 mmHg = 133.322 Pa = 0.00133322 bar = 0.0193368 psi