Alaska is about 13 times bigger than Cuba.

Cuba is approximately 110,860 sq km, while Alaska is approximately 1,481,348 sq km, making Alaska 1,236% larger than Cuba. Meanwhile, the population of Cuba is ~11.0 million people (10.3 million fewer people live in Alaska).
Tip: This to-scale comparison of Cuba vs. Alaska uses the Mercator projection, which distorts the size of regions near the poles.