Wyoming is about 10 times bigger than Vermont.

Vermont is approximately 23,956 sq km, while Wyoming is approximately 251,489 sq km, making Wyoming 950% larger than Vermont. Meanwhile, the population of Vermont is ~625,741 people (62,115 fewer people live in Wyoming).
Tip: This to-scale comparison of Vermont vs. Wyoming uses the Mercator projection, which distorts the size of regions near the poles.