New Zealand is about 4.3 times bigger than West Virginia.

West Virginia is approximately 62,361 sq km, while New Zealand is approximately 268,838 sq km, making New Zealand 331% larger than West Virginia. Meanwhile, the population of West Virginia is ~1.9 million people (3.2 million more people live in New Zealand).
Tip: This to-scale comparison of West Virginia vs. New Zealand uses the Mercator projection, which distorts the size of regions near the poles.