Thailand is about 19 times smaller than United States.

United States is approximately 9,833,517 sq km, while Thailand is approximately 513,120 sq km, making Thailand 5.22% the size of United States. Meanwhile, the population of United States is ~337.3 million people (267.7 million fewer people live in Thailand).
This to-scale comparison of United States vs. Thailand uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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