Tanzania is about 1.3 times smaller than Niger.

Niger is approximately 1,267,000 sq km, while Tanzania is approximately 947,300 sq km, making Tanzania 74.77% the size of Niger. Meanwhile, the population of Niger is ~24.5 million people (39.4 million more people live in Tanzania).
This to-scale comparison of Niger vs. Tanzania uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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