Alaska is around the same size as Chad.

Chad is approximately 1,284,000 sq km, while Alaska is approximately 1,481,348 sq km, making Alaska 15% larger than Chad. Meanwhile, the population of Chad is ~18.0 million people (17.3 million fewer people live in Alaska).
Tip: This to-scale comparison of Chad vs. Alaska uses the Mercator projection, which distorts the size of regions near the poles.