Hawaii is about 1.4 times bigger than Vanuatu.

Vanuatu is approximately 12,189 sq km, while Hawaii is approximately 16,635 sq km, making Hawaii 36% larger than Vanuatu. Meanwhile, the population of Vanuatu is ~308,043 people (1.1 million more people live in Hawaii).
Tip: This to-scale comparison of Vanuatu vs. Hawaii uses the Mercator projection, which distorts the size of regions near the poles.