South Korea is about 1.4 times smaller than Florida.

Florida is approximately 139,670 sq km, while South Korea is approximately 99,720 sq km, making South Korea 71.4% the size of Florida. Meanwhile, the population of Florida is ~23.5 million people (28.2 million more people live in South Korea).
Tip: This to-scale comparison of Florida vs. South Korea uses the Mercator projection, which distorts the size of regions near the poles.
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