Japan is about 1.3 times bigger than Arizona.

Arizona is approximately 294,312 sq km, while Japan is approximately 377,915 sq km, making Japan 28% larger than Arizona. Meanwhile, the population of Arizona is ~6.4 million people (117.8 million more people live in Japan).
This to-scale comparison of Arizona vs. Japan uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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