Liechtenstein is about 120 times smaller than New Jersey.

New Jersey is approximately 19,211 sq km, while Liechtenstein is approximately 160 sq km, making Liechtenstein 0.83% the size of New Jersey. Meanwhile, the population of New Jersey is ~8.8 million people (8.8 million fewer people live in Liechtenstein).
Tip: This to-scale comparison of New Jersey vs. Liechtenstein uses the Mercator projection, which distorts the size of regions near the poles.