Sri Lanka is about 1.5 times smaller than South Korea.

South Korea is approximately 99,720 sq km, while Sri Lanka is approximately 65,610 sq km, making Sri Lanka 65.79% the size of South Korea. Meanwhile, the population of South Korea is ~51.8 million people (28.7 million fewer people live in Sri Lanka).
This to-scale comparison of South Korea vs. Sri Lanka uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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