Hong Kong
1,114 km²
Oslo
454 km²
China
Norway
Area Comparison
Hong Kong is 2.5x larger than Oslo
Population Comparison
Hong Kong has 10.3x more people than Oslo
In terms of area, Hong Kong is 2.5x the size of Oslo. Hong Kong spans 1,114 km² (430 mi²) while Oslo covers 454 km² (175 mi²) — a difference of 660 km². You could fit Oslo inside Hong Kong approximately 2 times.
To put Hong Kong's size in perspective, its area of 1,114 km² is about 1.2x the size of Berlin. Meanwhile, Oslo at 454 km² is about 1.3x smaller than Seoul.
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. For Oslo, that's about 64,000 American football fields, 130 times the area of Central Park, or 8 times the area of Manhattan.
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.
Oslo is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of 724,290 in 2025, while the city's greater urban area had a population of 1,110,887 in 2025, and the metropolitan area had an estimated population of 1,546,706 in 2021.
Also known as "Tigerstaden", Oslo has an area of 454 km² and is home to 0.7 million people. Its history stretches back to 1048. Visitors come for Vigeland Park, Oslo Opera House, Akershus Fortress, and much more.
Oslo is both a county and a municipality, with the city itself home to about 724,000 residents in 2025.
Hong Kong has a population density of 6,652 people per km² — a densely populated city. Oslo, with 1,586 people per km², is a relatively spread-out city. Hong Kong is dramatically more crowded, with 4.2x the population density.
Size Ratio
Oslo fits inside Hong Kong ~2 times
Density Gap
Hong Kong is 4.2x more densely populated
History
Oslo is ~793 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).
Oslo covers 454 km². Cities with a similar urban footprint include Prague (496 km²), Vienna (415 km²), Montreal (498 km²), Denver (401 km²), or Warsaw (517 km²).
The straight-line distance from Hong Kong to Oslo is 8,589 km (5,337 miles), with an estimated flight time of ~10h 36m.
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