Japan is about 21 times bigger than Kuwait.

Kuwait is approximately 17,818 sq km, while Japan is approximately 377,915 sq km, making Japan 2,021% larger than Kuwait. Meanwhile, the population of Kuwait is ~3.1 million people (121.1 million more people live in Japan).
This to-scale comparison of Kuwait vs. Japan uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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