Pressure Converter
unit-converter
Convert between SI, meteorology, industrial, and column-based pressure units including kgf/cm², inHg, inH2O, mmH2O, torr, and mmHg. All Unit Conversions panel included.
Convert Pressure
Formula will appear here
All Unit Conversions
Dedicated converters (SI, meteorology, industrial gauge, and manometric pressure units)
156 pages — every pair of units below, with fixed input/output, formulas, examples, and conversion tables.
- bar to atm (Bar to Atmosphere)
- bar to psi (Bar to PSI)
- bar to kgf-cm2 (Bar to kgf/cm²)
- bar to inhg (Bar to inHg)
- bar to inh2o (Bar to inH2O)
- bar to mmh2o (Bar to mmH2O)
- bar to kpa (Bar to Kilopascal)
- bar to hpa (Bar to Hectopascal)
- bar to mbar (Bar to Millibar)
- bar to torr (Bar to Torr)
- bar to mmhg (Bar to mmHg)
- bar to pa (Bar to Pascal)
- atm to bar (Atmosphere to Bar)
- atm to psi (Atmosphere to PSI)
- atm to kgf-cm2 (Atmosphere to kgf/cm²)
- atm to inhg (Atmosphere to inHg)
- atm to inh2o (Atmosphere to inH2O)
- atm to mmh2o (Atmosphere to mmH2O)
- atm to kpa (Atmosphere to Kilopascal)
- atm to hpa (Atmosphere to Hectopascal)
- atm to mbar (Atmosphere to Millibar)
- atm to torr (Atmosphere to Torr)
- atm to mmhg (Atmosphere to mmHg)
- atm to pa (Atmosphere to Pascal)
- psi to bar (PSI to Bar)
- psi to atm (PSI to Atmosphere)
- psi to kgf-cm2 (PSI to kgf/cm²)
- psi to inhg (PSI to inHg)
- psi to inh2o (PSI to inH2O)
- psi to mmh2o (PSI to mmH2O)
- psi to kpa (PSI to Kilopascal)
- psi to hpa (PSI to Hectopascal)
- psi to mbar (PSI to Millibar)
- psi to torr (PSI to Torr)
- psi to mmhg (PSI to mmHg)
- psi to pa (PSI to Pascal)
- kgf-cm2 to bar (kgf/cm² to Bar)
- kgf-cm2 to atm (kgf/cm² to Atmosphere)
- kgf-cm2 to psi (kgf/cm² to PSI)
- kgf-cm2 to inhg (kgf/cm² to inHg)
- kgf-cm2 to inh2o (kgf/cm² to inH2O)
- kgf-cm2 to mmh2o (kgf/cm² to mmH2O)
- kgf-cm2 to kpa (kgf/cm² to Kilopascal)
- kgf-cm2 to hpa (kgf/cm² to Hectopascal)
- kgf-cm2 to mbar (kgf/cm² to Millibar)
- kgf-cm2 to torr (kgf/cm² to Torr)
- kgf-cm2 to mmhg (kgf/cm² to mmHg)
- kgf-cm2 to pa (kgf/cm² to Pascal)
- inhg to bar (inHg to Bar)
- inhg to atm (inHg to Atmosphere)
- inhg to psi (inHg to PSI)
- inhg to kgf-cm2 (inHg to kgf/cm²)
- inhg to inh2o (inHg to inH2O)
- inhg to mmh2o (inHg to mmH2O)
- inhg to kpa (inHg to Kilopascal)
- inhg to hpa (inHg to Hectopascal)
- inhg to mbar (inHg to Millibar)
- inhg to torr (inHg to Torr)
- inhg to mmhg (inHg to mmHg)
- inhg to pa (inHg to Pascal)
- inh2o to bar (inH2O to Bar)
- inh2o to atm (inH2O to Atmosphere)
- inh2o to psi (inH2O to PSI)
- inh2o to kgf-cm2 (inH2O to kgf/cm²)
- inh2o to inhg (inH2O to inHg)
- inh2o to mmh2o (inH2O to mmH2O)
- inh2o to kpa (inH2O to Kilopascal)
- inh2o to hpa (inH2O to Hectopascal)
- inh2o to mbar (inH2O to Millibar)
- inh2o to torr (inH2O to Torr)
- inh2o to mmhg (inH2O to mmHg)
- inh2o to pa (inH2O to Pascal)
- mmh2o to bar (mmH2O to Bar)
- mmh2o to atm (mmH2O to Atmosphere)
- mmh2o to psi (mmH2O to PSI)
- mmh2o to kgf-cm2 (mmH2O to kgf/cm²)
- mmh2o to inhg (mmH2O to inHg)
- mmh2o to inh2o (mmH2O to inH2O)
- mmh2o to kpa (mmH2O to Kilopascal)
- mmh2o to hpa (mmH2O to Hectopascal)
- mmh2o to mbar (mmH2O to Millibar)
- mmh2o to torr (mmH2O to Torr)
- mmh2o to mmhg (mmH2O to mmHg)
- mmh2o to pa (mmH2O to Pascal)
- kpa to bar (Kilopascal to Bar)
- kpa to atm (Kilopascal to Atmosphere)
- kpa to psi (Kilopascal to PSI)
- kpa to kgf-cm2 (Kilopascal to kgf/cm²)
- kpa to inhg (Kilopascal to inHg)
- kpa to inh2o (Kilopascal to inH2O)
- kpa to mmh2o (Kilopascal to mmH2O)
- kpa to hpa (Kilopascal to Hectopascal)
- kpa to mbar (Kilopascal to Millibar)
- kpa to torr (Kilopascal to Torr)
- kpa to mmhg (Kilopascal to mmHg)
- kpa to pa (Kilopascal to Pascal)
- hpa to bar (Hectopascal to Bar)
- hpa to atm (Hectopascal to Atmosphere)
- hpa to psi (Hectopascal to PSI)
- hpa to kgf-cm2 (Hectopascal to kgf/cm²)
- hpa to inhg (Hectopascal to inHg)
- hpa to inh2o (Hectopascal to inH2O)
- hpa to mmh2o (Hectopascal to mmH2O)
- hpa to kpa (Hectopascal to Kilopascal)
- hpa to mbar (Hectopascal to Millibar)
- hpa to torr (Hectopascal to Torr)
- hpa to mmhg (Hectopascal to mmHg)
- hpa to pa (Hectopascal to Pascal)
- mbar to bar (Millibar to Bar)
- mbar to atm (Millibar to Atmosphere)
- mbar to psi (Millibar to PSI)
- mbar to kgf-cm2 (Millibar to kgf/cm²)
- mbar to inhg (Millibar to inHg)
- mbar to inh2o (Millibar to inH2O)
- mbar to mmh2o (Millibar to mmH2O)
- mbar to kpa (Millibar to Kilopascal)
- mbar to hpa (Millibar to Hectopascal)
- mbar to torr (Millibar to Torr)
- mbar to mmhg (Millibar to mmHg)
- mbar to pa (Millibar to Pascal)
- torr to bar (Torr to Bar)
- torr to atm (Torr to Atmosphere)
- torr to psi (Torr to PSI)
- torr to kgf-cm2 (Torr to kgf/cm²)
- torr to inhg (Torr to inHg)
- torr to inh2o (Torr to inH2O)
- torr to mmh2o (Torr to mmH2O)
- torr to kpa (Torr to Kilopascal)
- torr to hpa (Torr to Hectopascal)
- torr to mbar (Torr to Millibar)
- torr to mmhg (Torr to mmHg)
- torr to pa (Torr to Pascal)
- mmhg to bar (mmHg to Bar)
- mmhg to atm (mmHg to Atmosphere)
- mmhg to psi (mmHg to PSI)
- mmhg to kgf-cm2 (mmHg to kgf/cm²)
- mmhg to inhg (mmHg to inHg)
- mmhg to inh2o (mmHg to inH2O)
- mmhg to mmh2o (mmHg to mmH2O)
- mmhg to kpa (mmHg to Kilopascal)
- mmhg to hpa (mmHg to Hectopascal)
- mmhg to mbar (mmHg to Millibar)
- mmhg to torr (mmHg to Torr)
- mmhg to pa (mmHg to Pascal)
- pa to bar (Pascal to Bar)
- pa to atm (Pascal to Atmosphere)
- pa to psi (Pascal to PSI)
- pa to kgf-cm2 (Pascal to kgf/cm²)
- pa to inhg (Pascal to inHg)
- pa to inh2o (Pascal to inH2O)
- pa to mmh2o (Pascal to mmH2O)
- pa to kpa (Pascal to Kilopascal)
- pa to hpa (Pascal to Hectopascal)
- pa to mbar (Pascal to Millibar)
- pa to torr (Pascal to Torr)
- pa to mmhg (Pascal to mmHg)
Common questions (FAQ)
10 quick answers with guides and links to the matching converter.
- How many pascals are in a bar?
- How do you convert PSI to bar?
- How many kilopascals are in one atmosphere?
- How do you convert hectopascal (hPa) to mmHg?
- How many torr are in one atmosphere?
- How do you convert mmHg to kilopascal?
- How many hectopascals are in a bar?
- How do you convert pascal to PSI?
- How many pascals are in one torr?
- How do you convert kilopascal to PSI?
Pressure Converter Guide
Quick start
- Enter a value and pick source and target units. The result updates as you type.
- Use swap to reverse units and copy to copy the result. The All Unit Conversions panel lists your value across every supported pressure unit.
Formulas & deeper content
Need formulas, worked examples, and tables for one pair (e.g. bar to PSI)? Use a dedicated converter from the list above.
Short answers to common questions are in the FAQ section above. All calculations run in your browser; Pa, kPa, hPa, bar, atm, PSI, torr, and mmHg are supported.
Example uses
- Engineering: tire pressure, hydraulics, and vessel ratings in bar or PSI.
- Meteorology: surface pressure in hPa or millibar.
- Medicine and vacuum: mmHg, torr, and pascal equivalents.