Cambodia is about 2.1 times smaller than Japan.

Japan is approximately 377,915 sq km, while Cambodia is approximately 181,035 sq km, making Cambodia 47.9% the size of Japan. Meanwhile, the population of Japan is ~124.2 million people (107.5 million fewer people live in Cambodia).
This to-scale comparison of Japan vs. Cambodia uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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