Isle of Man is about 2,590 times smaller than Alaska.

Alaska is approximately 1,481,348 sq km, while Isle of Man is approximately 572 sq km, making Isle of Man 0.04% the size of Alaska. Meanwhile, the population of Alaska is ~710,231 people (618,849 fewer people live in Isle of Man).
Tip: This to-scale comparison of Alaska vs. Isle of Man uses the Mercator projection, which distorts the size of regions near the poles.