After the Cup x's PSI thread did not quite give me all the exact answers I wanted, I thought I'd post this link to something I found long time ago in a similar quest for conversion info. Check it out. If you enter a value in one box & hit "Calculate" it will fill in All the box's.
It will give you data for : Pressure - except the CUP x's PSI I wanted, Temp, Length, Weight & Volume. www.WorldWideMetric.com/measurement.html
Remember Aesops Fables of the "Scorpion & and the Frog's" crossing the river...
... we must hang together, or we will ALL hang seperately, Ben Franklin..
Those who fail to learn from History are doomed to repeat it,Santayana