United States is about 137 times bigger than Sierra Leone.

Sierra Leone is approximately 71,740 sq km, while United States is approximately 9,833,517 sq km, making United States 13,607% larger than Sierra Leone. Meanwhile, the population of Sierra Leone is ~8.7 million people (328.6 million more people live in United States).
This to-scale comparison of Sierra Leone vs. United States uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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