New Jersey is about 4.1 times smaller than Czech Republic.

Czech Republic is approximately 78,867 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 24.36% the size of Czech Republic. Meanwhile, the population of Czech Republic is ~10.7 million people (1.9 million fewer people live in New Jersey).
This to-scale comparison of Czech Republic vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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