Hawaii is about 6 times smaller than South Korea.

South Korea is approximately 99,720 sq km, while Hawaii is approximately 16,635 sq km, making Hawaii 16.68% the size of South Korea. Meanwhile, the population of South Korea is ~51.8 million people (50.5 million fewer people live in Hawaii).
Tip: This to-scale comparison of South Korea vs. Hawaii uses the Mercator projection, which distorts the size of regions near the poles.
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