Vanuatu is about 580 times bigger than Nauru.

Nauru is approximately 21 sq km, while Vanuatu is approximately 12,189 sq km, making Vanuatu 57,943% larger than Nauru. Meanwhile, the population of Nauru is ~9,811 people (298,232 more people live in Vanuatu).
Tip: This to-scale comparison of Nauru vs. Vanuatu uses the Mercator projection, which distorts the size of regions near the poles.
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