:

A bar is a measure of pressure.

1 bar = 100 kPa, or

1 bar = 100,000 Pascals.

The conversion factor to the Imperial way of measuring pressure is 14.5

In other words to convert bar to psi (pounds per square inch), multiply by 14.5.

Example: Convert 2 bar to psi.
Answer = 2x14.5 =29 psi.

Although bar and atmospheres (atm) are very similar ways to measure pressure, they are not the same:

1 bar = 100 kN/m2 = 14.5 psi

1 atm = 101.3 kN/m2 = 14.7 psi

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