Greenland is about 1.5 times bigger than Alaska.

Alaska is approximately 1,481,348 sq km, while Greenland is approximately 2,166,086 sq km, making Greenland 46% larger than Alaska. Meanwhile, the population of Alaska is ~737,270 people (680,439 fewer people live in Greenland).
Tip: This to-scale comparison of Alaska vs. Greenland uses the Mercator projection, which distorts the size of regions near the poles.
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