Cameroon is about 18 times smaller than Brazil.

Brazil is approximately 8,515,770 sq km, while Cameroon is approximately 475,440 sq km, making Cameroon 5.58% the size of Brazil. Meanwhile, the population of Brazil is ~212.8 million people (182.9 million fewer people live in Cameroon).
Tip: This to-scale comparison of Brazil vs. Cameroon uses the Mercator projection, which distorts the size of regions near the poles.
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