Nigeria is about 43,989 times bigger than Nauru.

Nauru is approximately 21 sq km, while Nigeria is approximately 923,768 sq km, making Nigeria 4,398,795% larger than Nauru. Meanwhile, the population of Nauru is ~9,811 people (225.1 million more people live in Nigeria).
Tip: This to-scale comparison of Nauru vs. Nigeria uses the Mercator projection, which distorts the size of regions near the poles.
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