Home Tips & Tricks How to Convert Tire Pressure BAR to PSI

How to Convert Tire Pressure BAR to PSI


Tire pressures measured in bars are easily converted to psi measurements. Tire pressures are stated by manufacturers in bars or pounds per square inch, or psi. Knowing the equivalent pressure of a bar value in psi necessitates knowing how to convert between the two scales. Having the correct tire pressure can increase the life of your tires; improve your fuel efficiency and improve the handling of your vehicle. A simple mathematical formula converts tire pressures expressed in bars into pressures expressed in psi.

Things You’ll Need: Calculator


  • Enter the tire pressure value into the calculator. For a 2.5 bar tire, enter 2.5. The bar, a metric value used widely in industry and science, is the international unit of pressure.