Heard Island and McDonald Islands is about 597 times smaller than Guinea.

Guinea is approximately 245,857 sq km, while Heard Island and McDonald Islands is approximately 412 sq km, making Heard Island and McDonald Islands 0.17% the size of Guinea.
Tip: This to-scale comparison of Guinea 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. Guinea

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