Lagos
1,172 km²
Oslo
454 km²
Nigeria
Norway
Area Comparison
Lagos is 2.6x larger than Oslo
Population Comparison
Lagos has 21.4x more people than Oslo
In terms of area, Lagos is 2.6x the size of Oslo. Lagos spans 1,172 km² (453 mi²) while Oslo covers 454 km² (175 mi²) — a difference of 718 km². You could fit Oslo inside Lagos approximately 2 times.
To put Lagos's size in perspective, its area of 1,172 km² is about 1.3x the size of Berlin. Meanwhile, Oslo at 454 km² is about 1.3x smaller than Seoul.
Picture Lagos another way: its area is large enough to fit about 164,000 American football fields, 20 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.
Lagos, or Lagos City, is a large metropolitan port city in southwestern Nigeria. As of November 2025, the size of the city's population has been estimated to be between 17 and 21 million residents, making Lagos the largest city in Nigeria, the most populous urban area on the African continent, and one of the fastest-growing megacities in the world.
Known as "Lasgidi", Lagos covers 1,172 km² with a population of 15.4 million. The city was established in 1472. Lagos is known for Victoria Island, Lekki Conservation Centre, Nike Art Gallery, among other attractions. The city's main transit system is the Lagos Rail (Blue & Red Lines).
Lagos is the most populous urban area on the African continent, with an estimated 17 to 21 million residents as of 2025.
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. The city dates 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.
Lagos has a population density of 13,131 people per km² — an extremely dense urban environment. Oslo, with 1,586 people per km², is a relatively spread-out city. Lagos is dramatically more crowded, with 8.3x the population density.
Size Ratio
Oslo fits inside Lagos ~2 times
Density Gap
Lagos is 8.3x more densely populated
History
Oslo is ~424 years older
Lagos covers 1,172 km². Cities with a similar urban footprint include San Antonio (1,209 km²), Rio de Janeiro (1,221 km²), Hong Kong (1,114 km²), Rome (1,285 km²), or Los Angeles (1,302 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 Lagos to Oslo is 5,969 km (3,709 miles), with an estimated flight time of ~7h 31m.
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