New Caledonia is about 45 times bigger than Heard Island and McDonald Islands.

Heard Island and McDonald Islands is approximately 412 sq km, while New Caledonia is approximately 18,575 sq km, making New Caledonia 4,408% larger than Heard Island and McDonald Islands.
Tip: This to-scale comparison of Heard Island and McDonald Islands vs. New Caledonia uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: New Caledonia vs. Heard Island and McDonald Islands

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