Turkmenistan is about 3.4 times bigger than Illinois.

Illinois is approximately 143,961 sq km, while Turkmenistan is approximately 488,100 sq km, making Turkmenistan 239% larger than Illinois. Meanwhile, the population of Illinois is ~12.8 million people (7.2 million fewer people live in Turkmenistan).
This to-scale comparison of Illinois vs. Turkmenistan uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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