Mauritania is about 1.2 times smaller than Niger.

Niger is approximately 1,267,000 sq km, while Mauritania is approximately 1,030,700 sq km, making Mauritania 81.35% the size of Niger. Meanwhile, the population of Niger is ~24.5 million people (20.3 million fewer people live in Mauritania).
This to-scale comparison of Niger vs. Mauritania uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

Share this