* Europe (excluding Russia): Australia is slightly smaller than Europe (excluding Russia). Australia's land area is about 7.69 million square kilometers (2.97 million square miles), while Europe (excluding Russia) is about 10.18 million square kilometers (3.93 million square miles).
* United States: Australia is slightly larger than the United States. Australia's land area is about 7.69 million square kilometers (2.97 million square miles), while the United States is about 9.83 million square kilometers (3.79 million square miles).
* Brazil: Australia is roughly the same size as Brazil. Australia's land area is about 7.69 million square kilometers (2.97 million square miles), while Brazil's land area is about 8.52 million square kilometers (3.29 million square miles).