Maine is about 1.3 times bigger than West Virginia.

West Virginia is approximately 62,361 sq km, while Maine is approximately 79,931 sq km, making Maine 28% larger than West Virginia. Meanwhile, the population of West Virginia is ~1.9 million people (524,633 fewer people live in Maine).
Tip: This to-scale comparison of West Virginia vs. Maine uses the Mercator projection, which distorts the size of regions near the poles.