Boston
232 km²
Hong Kong
1,114 km²
USA
China
Area Comparison
Boston is 4.8x smaller than Hong Kong
Population Comparison
Boston has 10.9x fewer people than Hong Kong
In terms of area, Hong Kong is 4.8x the size of Boston. Hong Kong spans 1,114 km² (430 mi²) while Boston covers 232 km² (90 mi²) — a difference of 882 km². You could fit Boston inside Hong Kong approximately 4 times.
To put Boston's size in perspective, its area of 232 km² is roughly the same size as Amsterdam. Meanwhile, Hong Kong at 1,114 km² is about 1.2x the size of Berlin.
Picture Boston another way: its area is large enough to fit about 32,000 American football fields, 110 times the area of Monaco, or 68 times the area of Central Park. Hong Kong works out to about 156,000 American football fields, 19 times the area of Manhattan, or 11 times the area of Paris.
Boston is the capital and most populous city of the U.S. state of Massachusetts. It serves as a cultural and financial center of New England, a region of the Northeastern United States. Boston has an area of 48.4 sq mi (125 km2) and a population of 675,647 as of the 2020 census, making it the third-most populous city in the Northeastern United States after New York City and Philadelphia.
Known as "Beantown", Boston covers 232 km² with a population of 0.7 million. The city was established in 1630. Boston is known for Fenway Park, Freedom Trail, Harvard University, among other attractions. The city's main transit system is the MBTA (The T).
Boston covers just 125 km2 yet serves as the cultural and financial heart of all New England
Hong Kong is a special administrative region of China. Situated on China's southern coast just south of Shenzhen, it consists of Hong Kong Island, Kowloon, and the New Territories. With 7.5 million residents in a 1,114-square-kilometre (430 sq mi) territory, Hong Kong is the fourth-most densely populated region in the world.
Also known as "Pearl of the Orient", Hong Kong has an area of 1,114 km² and is home to 7.4 million people. The city dates back to 1841. Visitors come for Victoria Harbour, Victoria Peak, Star Ferry, and much more. Getting around is easy with the MTR Hong Kong.
Hong Kong squeezes 7.5 million residents into 1,114 km2, making it the world's fourth-most densely populated region.
Boston has a population density of 2,931 people per km² — a moderately dense city. Hong Kong, with 6,652 people per km², is a densely populated city. Hong Kong is noticeably denser, packing 2.3 times more people per square kilometer.
This comparison spans continents — Boston in North America versus Hong Kong in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Boston has a humid continental climate while Hong Kong experiences humid subtropical conditions. Winters differ dramatically: Hong Kong stays around 16°C while Boston drops to -1°C. When it's noon in Hong Kong, it's midnight in Boston — a 13-hour time difference.
Size Ratio
Boston fits inside Hong Kong ~4 times
Density Gap
Hong Kong is 2.3x more densely populated
Time Difference
13 hours apart
History
Boston is ~211 years older
Boston covers 232 km². Cities with a similar urban footprint include Osaka (225 km²), Kuala Lumpur (243 km²), Amsterdam (219 km²), Helsinki (214 km²), or Edinburgh (259 km²).
Hong Kong covers 1,114 km². Cities with a similar urban footprint include Lagos (1,172 km²), San Antonio (1,209 km²), Rio de Janeiro (1,221 km²), Dallas (997 km²), or Abu Dhabi (972 km²).
The straight-line distance from Boston to Hong Kong is 12,803 km (7,955 miles), with an estimated flight time of ~15h 34m.
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