Chad is about 1.6 times bigger than Namibia.

Namibia is approximately 824,292 sq km, while Chad is approximately 1,284,000 sq km, making Chad 56% larger than Namibia. Meanwhile, the population of Namibia is ~3.1 million people (17.9 million more people live in Chad).
Tip: This to-scale comparison of Namibia vs. Chad uses the Mercator projection, which distorts the size of regions near the poles.
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