Greenland is about 4.1 times bigger than Yemen.

Yemen is approximately 527,968 sq km, while Greenland is approximately 2,166,086 sq km, making Greenland 310% larger than Yemen. Meanwhile, the population of Yemen is ~41.8 million people (41.7 million fewer people live in Greenland).
Tip: This to-scale comparison of Yemen vs. Greenland uses the Mercator projection, which distorts the size of regions near the poles.
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