Country size comparison
compared to
Greenland is about 2.3 times bigger than Nigeria.
Nigeria is approximately 923,768 sq km, while Greenland is approximately 2,166,086 sq km, making Greenland 134% larger than Nigeria. Meanwhile, the population of Nigeria is ~225.1 million people (225.0 million fewer people live in Greenland).
Compare further: Greenland vs. Nigeria