Alaska is about 1,827 times bigger than Kiribati.

Kiribati is approximately 811 sq km, while Alaska is approximately 1,481,348 sq km, making Alaska 182,557% larger than Kiribati. Meanwhile, the population of Kiribati is ~114,189 people (596,042 more people live in Alaska).
Tip: This to-scale comparison of Kiribati vs. Alaska uses the Mercator projection, which distorts the size of regions near the poles.