1 bar equals exactly
100 kPa
The kilopascal (kPa) is a multiple of the Pascal, the pressure unit of the International System, and is frequently used because it returns practical numbers for everyday pressures. One bar is exactly equal to 100 kPa.
To convert a measurement from bar to kPa, simply multiply the value by 100:
To convert from kPa to bar, perform the inverse operation, dividing by 100:
This conversion is common in tire and equipment technical specifications, where some manufacturers report pressure in kPa instead of bar, especially in technical manuals and catalogs intended for an international audience requiring standard International System units.