Dominican Republic is about 118 times bigger than Heard Island and McDonald Islands.

Heard Island and McDonald Islands is approximately 412 sq km, while Dominican Republic is approximately 48,670 sq km, making Dominican Republic 11,713% larger than Heard Island and McDonald Islands.
Tip: This to-scale comparison of Heard Island and McDonald Islands vs. Dominican Republic uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Dominican Republic vs. Heard Island and McDonald Islands

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