Zambia is about 2.5 times smaller than Sudan.

Sudan is approximately 1,861,484 sq km, while Zambia is approximately 752,618 sq km, making Zambia 40.43% the size of Sudan. Meanwhile, the population of Sudan is ~48.0 million people (28.3 million fewer people live in Zambia).
This to-scale comparison of Sudan vs. Zambia uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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