How many more square mile larger can is north america than the contiguous united states

An interesting word, “contiguous” refers to the 'lower 48 states. Those that can be reached in any transit, without involving the crossing of an international border. The lower 48, the contiguous states come in at 3.1 Million Square Miles to Australia's 2.97 million square miles. Still larger.

48 should be your answer! Hope this helps!