Alaska is about 1.9 times bigger than Pakistan.

Pakistan is approximately 796,095 sq km, while Alaska is approximately 1,481,348 sq km, making Alaska 86% larger than Pakistan. Meanwhile, the population of Pakistan is ~242.9 million people (242.2 million fewer people live in Alaska).
Tip: This to-scale comparison of Pakistan vs. Alaska uses the Mercator projection, which distorts the size of regions near the poles.