Singapore is about 32 times smaller than New Hampshire.

New Hampshire is approximately 23,227 sq km, while Singapore is approximately 719 sq km, making Singapore 3.1% the size of New Hampshire. Meanwhile, the population of New Hampshire is ~1.3 million people (4.6 million more people live in Singapore).
Tip: This to-scale comparison of New Hampshire vs. Singapore uses the Mercator projection, which distorts the size of regions near the poles.