Japan is about 2.1 times bigger than Cambodia.

Cambodia is approximately 181,035 sq km, while Japan is approximately 377,915 sq km, making Japan 109% larger than Cambodia. Meanwhile, the population of Cambodia is ~16.7 million people (107.5 million more people live in Japan).
This to-scale comparison of Cambodia vs. Japan uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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