Oslo
454 km²
Tokyo
2,194 km²
Norway
Japan
Area Comparison
Oslo is 4.8x smaller than Tokyo
Population Comparison
Oslo has 19.4x fewer people than Tokyo
Tokyo is significantly larger, covering 4.8 times the area of Oslo. Tokyo spans 2,194 km² (847 mi²) while Oslo covers 454 km² (175 mi²) — a difference of 1,740 km². You could fit Oslo inside Tokyo approximately 4 times.
To put Oslo's size in perspective, its area of 454 km² is about 1.3x smaller than Seoul. Meanwhile, Tokyo at 2,194 km² is about 1.1x smaller than Moscow.
Oslo's footprint is roughly about 64,000 American football fields, 130 times the area of Central Park, or 8 times the area of Manhattan — pick whichever unit feels intuitive. Tokyo, by comparison, equals about 307,000 American football fields, 37 times the area of Manhattan, or 21 times the area of Paris.
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.
Known as "Tigerstaden", Oslo covers 454 km² with a population of 0.7 million. The city was established in 1048. Oslo is known for Vigeland Park, Oslo Opera House, Akershus Fortress, among other attractions.
Oslo is both a county and a municipality, with the city itself home to about 724,000 residents in 2025.
Tokyo, officially the Tokyo Metropolis, is the capital and most populous city of Japan. With a population of over 14 million in the city proper in 2023, it is one of the most populous urban areas in the world. The Greater Tokyo Area, which includes Tokyo and parts of six neighboring prefectures, is the most populous metropolitan area in the world, with 41 million residents as of 2024.
Nicknamed "Eastern Capital", Tokyo has an area of 2,194 km² and is home to 14.0 million people. It was established in 1457. Visitors come for Shibuya Crossing, Tokyo Tower, Imperial Palace, and much more. Getting around is easy with the Tokyo Metro & JR East.
Greater Tokyo holds 41 million residents as of 2024, making it the most populous metropolitan area on Earth.
Oslo has a population density of 1,586 people per km² — a relatively spread-out city. Tokyo, with 6,363 people per km², is a densely populated city. Tokyo is dramatically more crowded, with 4.0x the population density.
Size Ratio
Oslo fits inside Tokyo ~4 times
Density Gap
Tokyo is 4.0x more densely populated
History
Oslo is ~409 years older
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).
Tokyo covers 2,194 km². Cities with a similar urban footprint include Ho Chi Minh City (2,061 km²), Shenzhen (1,997 km²), Cape Town (2,455 km²), Moscow (2,511 km²), or Lima (2,672 km²).
The straight-line distance from Oslo to Tokyo is 8,405 km (5,223 miles), with an estimated flight time of ~10h 23m.
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