Texas is about 1.9 times smaller than Chad.

Chad is approximately 1,284,000 sq km, while Texas is approximately 678,052 sq km, making Texas 52.81% the size of Chad. Meanwhile, the population of Chad is ~18.0 million people (7.2 million more people live in Texas).
Tip: This to-scale comparison of Chad vs. Texas uses the Mercator projection, which distorts the size of regions near the poles.