Country size comparison
compared to
Greenland is about 18 times bigger than Eritrea.
Eritrea is approximately 117,600 sq km, while Greenland is approximately 2,166,086 sq km, making Greenland 1,742% larger than Eritrea. Meanwhile, the population of Eritrea is ~6.2 million people (6.2 million fewer people live in Greenland).
Compare further: Greenland vs. Eritrea