Liberia is about 13 times smaller than Alaska.

Alaska is approximately 1,481,348 sq km, while Liberia is approximately 111,369 sq km, making Liberia 7.52% the size of Alaska. Meanwhile, the population of Alaska is ~710,231 people (4.6 million more people live in Liberia).
Tip: This to-scale comparison of Alaska vs. Liberia uses the Mercator projection, which distorts the size of regions near the poles.