Tyre pressure calculation

there was some link to this but cant find it. Wantd to work out the correct pressures for 15 inch wheels/tyres.

If anyones running 15s then what pressures are you running. For info in running 195/70/15s at 32 front and 44 rear. Or at least i thought i was. Looks like last time i checked em the gauge wasnt reading right as they are all over the place.

 

185 65 R15. 30 front. 40 rear

 

Pressure is pressure oisnt it? Don't !matter what size your wobblers are?

 

Apparently it does. Hence the question.

 

Found it
http://thelatebay.com/index.php?threads/tyre-pressures.61766/#post-1125731

My memory is going!