Norfolk Island is about 1.7 times bigger than Nauru.

Nauru is approximately 21 sq km, while Norfolk Island is approximately 36 sq km, making Norfolk Island 71% larger than Nauru. Meanwhile, the population of Nauru is ~9,811 people (8,063 fewer people live in Norfolk Island).
Tip: This to-scale comparison of Nauru vs. Norfolk Island uses the Mercator projection, which distorts the size of regions near the poles.
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