Guinea is about 5 times bigger than Dominican Republic.

Dominican Republic is approximately 48,670 sq km, while Guinea is approximately 245,857 sq km, making Guinea 405% larger than Dominican Republic. Meanwhile, the population of Dominican Republic is ~11.5 million people (3.6 million more people live in Guinea).
Tip: This to-scale comparison of Dominican Republic vs. Guinea uses the Mercator projection, which distorts the size of regions near the poles.
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