Puerto Rico is about 22 times bigger than Heard Island and McDonald Islands.

Heard Island and McDonald Islands is approximately 412 sq km, while Puerto Rico is approximately 9,104 sq km, making Puerto Rico 2,110% larger than Heard Island and McDonald Islands.
Tip: This to-scale comparison of Heard Island and McDonald Islands vs. Puerto Rico uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Puerto Rico vs. Heard Island and McDonald Islands

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