Nevada is about 12 times bigger than New Hampshire.

New Hampshire is approximately 23,227 sq km, while Nevada is approximately 284,448 sq km, making Nevada 1,125% larger than New Hampshire. Meanwhile, the population of New Hampshire is ~1.3 million people (1.4 million more people live in Nevada).
Tip: This to-scale comparison of New Hampshire vs. Nevada uses the Mercator projection, which distorts the size of regions near the poles.