I have a import 1994 impreza wrx and the standard boost gauge displays, kg's / CM squared on the dial?? is that normal or should it be in PSI ??

If its not normal, what would 0.5 KG / CM in PSI

I was confused when I looked at some other gauges the other night

 

different ways of representing the same thing.

0.5kg/cm2= roughly 7 psi=normal.