Pressure Converter
Convert PSI, bar, Pa, atm, and mmHg for automotive, weather, and engineering use.
Use case presets:
Live Conversion
Metric (Pascals)
Bar
Atmosphere
Other Units
Common Pressure Values
Tip: Select a use case tab to see relevant presets for that context. Type in any unit and all others update instantly.
How it works
Base Unit: 1 pascal (Pa) Metric to Pascal: 1 kPa = 1,000 Pa | 1 MPa = 1,000,000 Pa Bar to Pascal: 1 bar = 100,000 Pa | 1 mbar = 100 Pa Atmosphere to Pascal: 1 atm = 101,325 Pa Other to Pascal: 1 psi = 6,894.76 Pa | 1 mmHg = 133.322 Pa Common Reference Points: Standard atmosphere = 101.325 kPa = 14.696 psi = 760 mmHg Car tyre: 30–35 psi = 207–241 kPa Blood pressure: 120/80 mmHg = 16.0/10.7 kPa Deep sea (100m): ~10 atm = 1,013 kPa Bicycle tyre: 80–130 psi
Enter a pressure value in any unit and see the conversion to all others instantly. Supports metric (pascals), bar, atmosphere, psi, and mmHg. Includes use-case tabs for tyre pressure, weather, medical (blood pressure), and scuba diving, each with relevant presets. Perfect for understanding pressure in different contexts.
Why this matters
Pressure is measured differently depending on context. Car mechanics use psi; weather forecasters use mbar; medical professionals use mmHg; engineers use pascals or bar. Understanding pressure matters when checking tyre pressure, diving safely, monitoring weather, or understanding blood pressure readings. This calculator handles all systems with context-specific presets.
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