Costa Rica is about 1.4 times smaller than Sierra Leone.

Sierra Leone is approximately 71,740 sq km, while Costa Rica is approximately 51,100 sq km, making Costa Rica 71.23% the size of Sierra Leone. Meanwhile, the population of Sierra Leone is ~8.7 million people (3.5 million fewer people live in Costa Rica).
This to-scale comparison of Sierra Leone vs. Costa Rica uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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