West Virginia is about 1.4 times bigger than Estonia.

Estonia is approximately 45,228 sq km, while West Virginia is approximately 62,361 sq km, making West Virginia 38% larger than Estonia. Meanwhile, the population of Estonia is ~1.2 million people (641,470 more people live in West Virginia).
Tip: This to-scale comparison of Estonia vs. West Virginia uses the Mercator projection, which distorts the size of regions near the poles.