Sri Lanka is about 150 times smaller than United States.

United States is approximately 9,833,517 sq km, while Sri Lanka is approximately 65,610 sq km, making Sri Lanka 0.67% the size of United States. Meanwhile, the population of United States is ~341.8 million people (320.0 million fewer people live in Sri Lanka).
Tip: This to-scale comparison of United States vs. Sri Lanka uses the Mercator projection, which distorts the size of regions near the poles.
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