Chile is about 2 times smaller than Alaska.

Alaska is approximately 1,481,348 sq km, while Chile is approximately 756,102 sq km, making Chile 51.04% the size of Alaska. Meanwhile, the population of Alaska is ~710,231 people (17.7 million more people live in Chile).
Tip: This to-scale comparison of Alaska vs. Chile uses the Mercator projection, which distorts the size of regions near the poles.