Brunei is about 23 times smaller than Greece.

Greece is approximately 131,957 sq km, while Brunei is approximately 5,765 sq km, making Brunei 4.37% the size of Greece. Meanwhile, the population of Greece is ~10.5 million people (10.1 million fewer people live in Brunei).
This to-scale comparison of Greece vs. Brunei uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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