How high does Australia average above sea level?

Question

How high does Australia average above sea level?

Answer 1

0 to 2228 metres  how are you going to average that?

Answer 2

To answer Ozpy3; the avearge elevation of the Australian continent is about 330 metres, the lowest of any continent.  Not very high, is it?  If sea level rose by 100 metres, over 50% of the continent would be underwater.