Australia
Its closest neighbour in size would be Australia.
The area of Australia is 7,686,850 km2 The area of Japan is 377,873 km2 7,686,850 ÷ 377,873 = 20.34 So yes, Australia is slightly larger than 20 times the size of Japan.
californa
Australia - 7,617,930 km2 France - 674,843 km2 Australia is about 11 times the size of France.
BC is much larger- almost 3 times the size of Japan. BC is 944735 sq kilometers, Japan is 377923.
The area of mainland Australia is 7 659 861 sq km, not counting Tasmania and the many islands. The area of mainland France is 547 030 sq km. Therefore, Australia is 14 times larger than France.
Australia 7,741,000 square Kilometres Chad 1,284,000 square Kilometres ie Australia is 6 times the size of Chad (in area)
The capital of Australia is in Canberra, which is in Australia, not Japan. The Australian Embassy in Japan is in Tokyo, Japan.
Japan approximately the size of the state of Montana which is bigger than Germany, Malaysia, New Zealand and the U.K., and is 1.7 times the size of North and South Korea combined and 10 times the size of Taiwan.
Any number of comparisons might be drawn involving the size of Australia.The size of Australia is approximately the same as that of the 48 contiguous states of the USA ("the Lower 48"), which is to say the continental USA minus Alaska.
Slightly smaller than Montana.