New Hampshire is about 41 times smaller than Tanzania.

Tanzania is approximately 947,300 sq km, while New Hampshire is approximately 23,227 sq km, making New Hampshire 2.45% the size of Tanzania. Meanwhile, the population of Tanzania is ~63.9 million people (62.5 million fewer people live in New Hampshire).
Tip: This to-scale comparison of Tanzania vs. New Hampshire uses the Mercator projection, which distorts the size of regions near the poles.