Antigua and Barbuda is about 43 times smaller than New Jersey.

New Jersey is approximately 19,211 sq km, while Antigua and Barbuda is approximately 443 sq km, making Antigua and Barbuda 2.3% the size of New Jersey. Meanwhile, the population of New Jersey is ~8.8 million people (8.7 million fewer people live in Antigua and Barbuda).
Tip: This to-scale comparison of New Jersey vs. Antigua and Barbuda uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.