Country size comparison

compared to

Heard Island and McDonald Islands is about 432 times smaller than Oklahoma.

Oklahoma is approximately 177,847 sq km, while Heard Island and McDonald Islands is approximately 412 sq km, making Heard Island and McDonald Islands 0.23% the size of Oklahoma.
Tip: This to-scale comparison of Oklahoma vs. Heard Island and McDonald Islands uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Heard Island and McDonald Islands vs. Oklahoma

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See Heard Island and McDonald Islands on top of Oklahoma
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