Budapest
525 km²
London
1,572 km²
Hungary
UK
Area Comparison
Budapest is 3.0x smaller than London
Population Comparison
Budapest has 5.3x fewer people than London
London is significantly larger, covering 3.0 times the area of Budapest. London spans 1,572 km² (607 mi²) while Budapest covers 525 km² (203 mi²) — a difference of 1,047 km². You could fit Budapest inside London approximately 2 times.
To put Budapest's size in perspective, its area of 525 km² is about 1.2x smaller than Seoul. Meanwhile, London at 1,572 km² is about 1.4x smaller than Tokyo (city proper).
Budapest's footprint is roughly about 74,000 American football fields, 150 times the area of Central Park, or 9 times the area of Manhattan — pick whichever unit feels intuitive. London, by comparison, equals about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris.
Budapest is the capital and most populous city of Hungary. It is Hungary's primate city with 1.7 million inhabitants and its greater metro area has a population of about 3.3 million, representing one-third of the country's population and producing above 40% of the country's economic output. Budapest is the political, economic, and cultural center of the country, among the ten largest cities in the European Union and the second largest urban area in Central and Eastern Europe.
Known as "Pearl of the Danube", Budapest covers 525 km² with a population of 1.7 million. The city was established in 1873. Budapest is known for Buda Castle, Hungarian Parliament Building, Chain Bridge, among other attractions.
Budapest's metro area holds about 3.3 million people, roughly one-third of Hungary's entire population.
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.
Nicknamed "The Big Smoke", London has an area of 1,572 km² and is home to 9.0 million people. The city dates back to 43. Visitors come for Big Ben, Tower Bridge, Buckingham Palace, and much more. Getting around is easy with the London Underground.
London has been a major settlement for nearly 2,000 years, tracing its roots back to Roman times around 47 AD.
Budapest has a population density of 3,219 people per km² — a moderately dense city. London, with 5,712 people per km², is a densely populated city. London is noticeably denser, packing 1.8 times more people per square kilometer.
Size Ratio
Budapest fits inside London ~2 times
Density Gap
London is 1.8x more densely populated
History
London is ~1,830 years older
Budapest covers 525 km². Cities with a similar urban footprint include Warsaw (517 km²), Montreal (498 km²), Prague (496 km²), Auckland (559 km²), or Mumbai (603 km²).
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).
The straight-line distance from Budapest to London is 1,450 km (901 miles), with an estimated flight time of ~2h 12m.
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