Heard Island and McDonald Islands is about 18,789 times smaller than Australia.

Australia is approximately 7,741,220 sq km, while Heard Island and McDonald Islands is approximately 412 sq km, making Heard Island and McDonald Islands 0.01% the size of Australia.
Tip: This to-scale comparison of Australia vs. Heard Island and McDonald Islands uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Heard Island and McDonald Islands vs. Australia

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