Samoa is about 4.9 times smaller than Montenegro.

Montenegro is approximately 13,812 sq km, while Samoa is approximately 2,831 sq km, making Samoa 20.5% the size of Montenegro. Meanwhile, the population of Montenegro is ~604,966 people (398,787 fewer people live in Samoa).
Tip: This to-scale comparison of Montenegro vs. Samoa uses the Mercator projection, which distorts the size of regions near the poles.
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