Jersey is about 3.5 times smaller than Heard Island and McDonald Islands.

Heard Island and McDonald Islands is approximately 412 sq km, while Jersey is approximately 116 sq km, making Jersey 28.16% the size of Heard Island and McDonald Islands.
Tip: This to-scale comparison of Heard Island and McDonald Islands vs. Jersey uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Jersey vs. Heard Island and McDonald Islands

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