Japan is about 1.3 times smaller than Turkmenistan.

Turkmenistan is approximately 488,100 sq km, while Japan is approximately 377,915 sq km, making Japan 77.43% the size of Turkmenistan. Meanwhile, the population of Turkmenistan is ~5.6 million people (118.6 million more people live in Japan).
This to-scale comparison of Turkmenistan vs. Japan uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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