Australia covers 7,706,009 km² km² on the new Equal Earth world map — 5.7%% of all land on Earth, making it the 6th largest country in the world and the 1st largest in Oceania. At 26° latitude Mercator only inflates Australia by about 23%%, so the old and new maps largely agree on it — unlike the far north, where Mercator's stretch is dramatic.
For scale: Australia is roughly the same size as Brazil (8,499,400 km² km²).
You could fit 3 of Algeria inside Australia.