Sierra Leone is about 1.4 times smaller than South Korea.

South Korea is approximately 99,720 sq km, while Sierra Leone is approximately 71,740 sq km, making Sierra Leone 71.94% the size of South Korea. Meanwhile, the population of South Korea is ~51.8 million people (43.2 million fewer people live in Sierra Leone).
This to-scale comparison of South Korea vs. Sierra Leone uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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