Budapest
525 km²
San Francisco
121 km²
Hungary
USA
Area Comparison
Budapest is 4.3x larger than San Francisco
Population Comparison
Budapest has 1.9x more people than San Francisco
Budapest is significantly larger, covering 4.3 times the area of San Francisco. Budapest spans 525 km² (203 mi²) while San Francisco covers 121 km² (47 mi²) — a difference of 404 km². You could fit San Francisco inside Budapest approximately 4 times.
To put Budapest's size in perspective, its area of 525 km² is about 1.2x smaller than Seoul. Meanwhile, San Francisco at 121 km² is about 1.2x the size of Paris (city proper).
In more relatable units, Budapest's 525 km² is about 74,000 American football fields, 150 times the area of Central Park, or 9 times the area of Manhattan. San Francisco, by comparison, equals about 17,000 American football fields, 60 times the area of Monaco, or 35 times the area of Central Park.
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.
San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 826,079 in 2025. Among U.S. cities with a population of 300,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate income as of 2023.
Also known as "The City by the Bay", San Francisco has an area of 121 km² and is home to 0.9 million people. It was established in 1776. Visitors come for Golden Gate Bridge, Alcatraz Island, Cable cars, and much more. Getting around is easy with the BART & Muni.
San Francisco ranks first by per capita income among all US cities with 300,000+ residents as of 2023.
Budapest has a population density of 3,219 people per km² — a moderately dense city. San Francisco, with 7,190 people per km², is a densely populated city. San Francisco is noticeably denser, packing 2.2 times more people per square kilometer.
Size Ratio
San Francisco fits inside Budapest ~4 times
Density Gap
San Francisco is 2.2x more densely populated
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).
San Francisco covers 121 km². Cities with a similar urban footprint include Vancouver (115 km²), Paris (105 km²), Miami (143 km²), Barcelona (101 km²), or Lisbon (100 km²).
The straight-line distance from Budapest to San Francisco is 9,792 km (6,085 miles), with an estimated flight time of ~12h 1m.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.