Hong Kong
1,114 km²
Osaka
225 km²
China
Japan
Area Comparison
Hong Kong is 5.0x larger than Osaka
Population Comparison
Hong Kong has 2.7x more people than Osaka
Yes — Hong Kong is 5.0x larger than Osaka by area. Hong Kong spans 1,114 km² (430 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 889 km². You could fit Osaka inside Hong Kong approximately 4 times.
To put Hong Kong's size in perspective, its area of 1,114 km² is about 1.2x the size of Berlin. Meanwhile, Osaka at 225 km² is roughly the same size as Amsterdam.
Picture Hong Kong another way: its area is large enough to fit about 156,000 American football fields, 19 times the area of Manhattan, or 11 times the area of Paris. Osaka works out to about 32,000 American football fields, 110 times the area of Monaco, or 66 times the area of Central Park.
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.
Known as "Pearl of the Orient", Hong Kong covers 1,114 km² with a population of 7.4 million. The city was established in 1841. Hong Kong is known for Victoria Harbour, Victoria Peak, Star Ferry, among other attractions. The city's main transit system is 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.
Osaka is a designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the third-most populous city in Japan, following the special wards of Tokyo and Yokohama. With an estimated population of 2,816,247 as of October 1, 2025 and a population density of about 12,505 people per square kilometer, it is the largest component of the Keihanshin Metropolitan Area, the second-largest metropolitan area in Japan and the 10th-largest urban…
Often called "Nation's Kitchen", Osaka has an area of 225 km² and is home to 2.8 million people. Its history stretches back to 645. Visitors come for Osaka Castle, Dotonbori district, Universal Studios Japan, and much more. Getting around is easy with the Osaka Metro.
Osaka is the third-most populous city in Japan, following the special wards of Tokyo and Yokohama.
Hong Kong has a population density of 6,652 people per km² — a densely populated city. Osaka, with 12,222 people per km², is an extremely dense urban environment. Osaka is noticeably denser, packing 1.8 times more people per square kilometer.
Both cities are in Asia, but they represent different national approaches to urban development. Hong Kong (China) and Osaka (Japan) offer a fascinating regional contrast.
Both cities share a humid subtropical climate, though local geography creates distinct microclimates in each.
Size Ratio
Osaka fits inside Hong Kong ~4 times
Density Gap
Osaka is 1.8x more densely populated
History
Osaka is ~1,196 years older
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).
Osaka covers 225 km². Cities with a similar urban footprint include Amsterdam (219 km²), Boston (232 km²), Helsinki (214 km²), Kuala Lumpur (243 km²), or Buenos Aires (203 km²).
The straight-line distance from Hong Kong to Osaka is 2,489 km (1,547 miles), with an estimated flight time of ~3h 26m.
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