Pressure Converter

Convert between different units of pressure (e.g., Pascal, Bar, PSI).

Convert Pressure

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About Pressure Units

Pressure is defined as the force applied perpendicular to the surface of an object per unit area over which that force is distributed. This calculator helps convert between some of the most common units:

  • Pascal (Pa): The SI unit of pressure, equal to one newton per square meter.
  • Bar: Roughly equal to the atmospheric pressure on Earth at sea level. 1 bar = 100,000 Pa.
  • PSI (Pounds per square inch): A common unit in the US, often used for tire pressure.
  • Atmosphere (atm): A unit of pressure defined as 101,325 Pa, which is the approximate atmospheric pressure at sea level.