PSI Converter

Conversion

Convert PSI (pounds per square inch) to other pressure units. Supports kPa (kilopascals), bar, atm (atmospheres), and MPa.

Formula

1 PSI = 6.89476 kPa = 0.0689476 bar = 0.0680046 atm
  • 1 PSI = 6.89476 kPa
  • 1 PSI = 0.0689476 bar
  • 1 PSI = 0.0680046 atm
  • 1 PSI = 0.00689476 MPa
  • PSI commonly used in tire pressure, industrial pressure, HVAC

Example

Inputs
  • Pressure (PSI): 30
  • Convert To: kpa

30 PSI = 30 × 6.89476 = 206.84 kPa.

Frequently asked questions

What is PSI?
PSI (pounds per square inch) is a unit of pressure commonly used in the USA for tire pressure, air compressors, and industrial applications.
What's typical tire pressure?
Car tires typically 30-35 PSI, truck tires 35-50 PSI. Check your vehicle's door jamb for recommended pressure.