Bulgaria is about 9 times smaller than Mauritania.

Mauritania is approximately 1,030,700 sq km, while Bulgaria is approximately 110,879 sq km, making Bulgaria 10.76% the size of Mauritania. Meanwhile, the population of Mauritania is ~4.2 million people (2.7 million more people live in Bulgaria).
This to-scale comparison of Mauritania vs. Bulgaria uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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