Heard Island and McDonald Islands is about 1.8 times smaller than Singapore.

Singapore is approximately 719 sq km, while Heard Island and McDonald Islands is approximately 412 sq km, making Heard Island and McDonald Islands 57.29% the size of Singapore.
Tip: This to-scale comparison of Singapore 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. Singapore

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