Alaska is about 227,900 times bigger than Gibraltar.

Gibraltar is approximately 7 sq km, while Alaska is approximately 1,481,348 sq km, making Alaska 22,789,869% larger than Gibraltar. Meanwhile, the population of Gibraltar is ~29,573 people (680,658 more people live in Alaska).
Tip: This to-scale comparison of Gibraltar vs. Alaska uses the Mercator projection, which distorts the size of regions near the poles.