Guam is about 169 times smaller than Portugal.

Portugal is approximately 92,090 sq km, while Guam is approximately 544 sq km, making Guam 0.59% the size of Portugal. Meanwhile, the population of Portugal is ~10.2 million people (10.1 million fewer people live in Guam).
This to-scale comparison of Portugal vs. Guam uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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