Can Australia Fit Into Antarctica? A Geographic Clarification

The question contains a category error: Australia is a country; Antarctica is a continent. Continents are landmasses; countries are political entities. They are not directly comparable in "fitting" terms.

Land Area Comparison

• Australia (country/mainland): ~7.69 million km²
• Antarctica (continent): ~14.2 million km² (ice-covered)

Antarctica is roughly 1.85 times the size of Australia's landmass. You could fit Australia into Antarctica almost twice by area—but only if you treat both as geographic areas, ignoring that one is a sovereign nation and the other a continent governed by international treaty.

So, the answer isn't "none"—it's "about 1.85 times, if comparing land areas."