Japan is about 2.1 times bigger than Missouri.

Missouri is approximately 178,414 sq km, while Japan is approximately 377,915 sq km, making Japan 112% larger than Missouri. Meanwhile, the population of Missouri is ~6.0 million people (118.2 million more people live in Japan).
This to-scale comparison of Missouri vs. Japan uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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