Pressure Converter

Pressure conversion is critical in engineering, meteorology, medicine, and industrial applications. Our free pressure converter supports all major pressure units, from the SI standard Pascal to the commonly used PSI in automotive and industrial settings.

Supported Pressure Units

SI/Metric: Pascal (Pa), Hectopascal (hPa), Kilopascal (kPa), Megapascal (MPa), Bar, Millibar (mbar). Imperial: PSI (pounds per square inch), PSF (pounds per square foot), Inch of Mercury (inHg). Atmosphere-Based: Atmosphere (atm), Torr, Millimeter of Mercury (mmHg), Technical Atmosphere (at).

Common Pressure Conversions

1 bar = 100,000 Pa = 14.5038 PSI. 1 atm = 101,325 Pa = 1.01325 bar = 14.696 PSI. 1 PSI = 6,894.76 Pa = 0.0689476 bar. Standard atmospheric pressure = 1 atm = 1013.25 hPa = 760 mmHg.

Real-World Applications

Tire pressure: Typically measured in PSI (US) or bar (Europe). A standard car tire is inflated to 30–35 PSI (2.1–2.4 bar). Weather: Atmospheric pressure measured in hPa or millibars. Standard sea-level pressure = 1013.25 hPa. Blood pressure: Measured in mmHg. Normal BP is approximately 120/80 mmHg. Scuba diving: Every 10 meters of water depth adds approximately 1 atm of pressure.