Malaysia is about 3.3 times bigger than South Korea.

South Korea is approximately 99,720 sq km, while Malaysia is approximately 329,847 sq km, making Malaysia 231% larger than South Korea. Meanwhile, the population of South Korea is ~51.8 million people (18.0 million fewer people live in Malaysia).
Tip: This to-scale comparison of South Korea vs. Malaysia uses the Mercator projection, which distorts the size of regions near the poles.
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