Vanuatu is about 10 times smaller than Eritrea.

Eritrea is approximately 117,600 sq km, while Vanuatu is approximately 12,189 sq km, making Vanuatu 10.36% the size of Eritrea. Meanwhile, the population of Eritrea is ~6.2 million people (5.9 million fewer people live in Vanuatu).
Tip: This to-scale comparison of Eritrea vs. Vanuatu uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.