Hong Kong vs New Jersey — true size compared
New Jersey is about 20.28× the area of Hong Kong — a difference of roughly 21,477 km² (8,292 sq mi). You could fit Hong Kong inside New Jersey about 20 times.
Hong Kong covers 1,114 km² (430 sq mi) of islands and mountainous mainland on the South China coast.
New Jersey covers 22,591 km² (8,723 sq mi) between New York and Philadelphia.
Overlay Hong Kong and New Jersey on the map →
Why maps make Hong Kong and New Jersey look wrong
Almost every web map — Google Maps, Apple Maps, OpenStreetMap — uses the Mercator projection. Mercator preserves shape locally, but it stretches land the further you get from the equator. Greenland ends up looking bigger than Africa. Alaska rivals the contiguous US. That's why Hong Kong and New Jersey can look similar on a world map even when one is many times larger. The only fair way to compare is to lift one outline off the map and drop it on top of the other at true scale.
Quick facts
- Hong Kong: 1,114 km² · 430 sq mi
- New Jersey: 22,591 km² · 8,722 sq mi
- Ratio: New Jersey is 20.28× Hong Kong
- Absolute difference: 21,477 km² (8,292 sq mi)
- Hong Kong fits inside New Jersey ~20 times
Frequently asked
Is Hong Kong bigger than New Jersey?
New Jersey is the bigger of the two, at 22,591 km² compared to 1,114 km² for Hong Kong.
How many times does Hong Kong fit inside New Jersey?
About 20 times — the exact ratio is 20.28×.
Why does the map exaggerate one of them?
Mercator projection. Places far from the equator get visually stretched. Overlay the two at true scale to see the honest comparison.