Heard Island and McDonald Islands is about 830 times smaller than Republic of the Congo.

Republic of the Congo is approximately 342,000 sq km, while Heard Island and McDonald Islands is approximately 412 sq km, making Heard Island and McDonald Islands 0.12% the size of Republic of the Congo.
Tip: This to-scale comparison of Republic of the Congo 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. Republic of the Congo

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