London
1,572 km²
Oslo
454 km²
UK
Norway
Area Comparison
London is 3.5x larger than Oslo
Population Comparison
London has 12.5x more people than Oslo
London is significantly larger, covering 3.5 times the area of Oslo. London spans 1,572 km² (607 mi²) while Oslo covers 454 km² (175 mi²) — a difference of 1,118 km². You could fit Oslo inside London approximately 3 times.
To put London's size in perspective, its area of 1,572 km² is about 1.4x smaller than Tokyo (city proper). Meanwhile, Oslo at 454 km² is about 1.3x smaller than Seoul.
In more relatable units, London's 1,572 km² is about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris. Oslo works out to about 64,000 American football fields, 130 times the area of Central Park, or 8 times the area of Manhattan.
London is the capital and largest city of England and the United Kingdom, with a population of 9.1 million people in 2024. Its wider metropolitan area is the largest in Western Europe, with a population of 15.1 million. London stands on the River Thames in southeast England, at the head of a 50-mile (80 km) tidal estuary down to the North Sea, and has been a major settlement for nearly 2,000 years.
Known as "The Big Smoke", London covers 1,572 km² with a population of 9.0 million. The city was established in 43. London is known for Big Ben, Tower Bridge, Buckingham Palace, among other attractions. The city's main transit system is the London Underground.
London has been a major settlement for nearly 2,000 years, tracing its roots back to Roman times around 47 AD.
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.
London has a population density of 5,712 people per km² — a densely populated city. Oslo, with 1,586 people per km², is a relatively spread-out city. London is dramatically more crowded, with 3.6x the population density.
Size Ratio
Oslo fits inside London ~3 times
Density Gap
London is 3.6x more densely populated
History
London is ~1,005 years older
London covers 1,572 km². Cities with a similar urban footprint include Bangkok (1,569 km²), Bogotá (1,578 km²), São Paulo (1,521 km²), Johannesburg (1,644 km²), or Mexico City (1,485 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 London to Oslo is 1,153 km (717 miles), with an estimated flight time of ~1h 51m.
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