South Korea is about 1.3 times smaller than Greece.

Greece is approximately 131,957 sq km, while South Korea is approximately 99,720 sq km, making South Korea 75.57% the size of Greece. Meanwhile, the population of Greece is ~10.5 million people (41.3 million more people live in South Korea).
This to-scale comparison of Greece vs. South Korea uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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