Estonia is about 1.4 times smaller than West Virginia.

West Virginia is approximately 62,361 sq km, while Estonia is approximately 45,228 sq km, making Estonia 72.53% the size of West Virginia. Meanwhile, the population of West Virginia is ~1.9 million people (641,470 fewer people live in Estonia).
Tip: This to-scale comparison of West Virginia vs. Estonia uses the Mercator projection, which distorts the size of regions near the poles.