San Francisco
121 km²
Singapore
733 km²
USA
Singapore
Area Comparison
San Francisco is 6.1x smaller than Singapore
Population Comparison
San Francisco has 6.3x fewer people than Singapore
In terms of area, Singapore is 6.1x the size of San Francisco. Singapore spans 733 km² (283 mi²) while San Francisco covers 121 km² (47 mi²) — a difference of 612 km². You could fit San Francisco inside Singapore approximately 6 times.
To put San Francisco's size in perspective, its area of 121 km² is about 1.2x the size of Paris (city proper). Meanwhile, Singapore at 733 km² is roughly the same size as New York City.
Picture San Francisco another way: its area is large enough to fit about 17,000 American football fields, 60 times the area of Monaco, or 35 times the area of Central Park. Singapore works out to about 103,000 American football fields, 12 times the area of Manhattan, or 7 times the area of Paris.
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.
Known as "The City by the Bay", San Francisco covers 121 km² with a population of 0.9 million. The city was established in 1776. San Francisco is known for Golden Gate Bridge, Alcatraz Island, Cable cars, among other attractions. The city's main transit system is the BART & Muni.
San Francisco ranks first by per capita income among all US cities with 300,000+ residents as of 2023.
Singapore, officially the Republic of Singapore, is an island country and city-state in Southeast Asia. Its territory comprises a main island, over 60 satellite islands and islets, and one outlying islet. The country is about one degree of latitude north of the equator, off the southern tip of the Malay Peninsula, bordering the Strait of Malacca to the west, the Singapore Strait to the south along with the Riau Islands in Indonesia, the South China Sea to the east and the Straits of Johor along…
Also known as "Lion City", Singapore has an area of 733 km² and is home to 5.5 million people. The city dates back to 1819. Visitors come for Marina Bay Sands, Gardens by the Bay, Merlion statue, and much more. Getting around is easy with the MRT Singapore.
Singapore is a city-state made up of one main island plus over 60 satellite islands and islets.
San Francisco has a population density of 7,190 people per km² — a densely populated city. Singapore, with 7,435 people per km², is a densely populated city. Both cities have comparable density, though Singapore is slightly more compact.
This comparison spans continents — San Francisco in North America versus Singapore in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
San Francisco has a Mediterranean climate while Singapore experiences tropical rainforest conditions. Winters differ dramatically: Singapore stays around 27°C while San Francisco drops to 10°C. When it's noon in Singapore, it's midnight in San Francisco — a 16-hour time difference.
Size Ratio
San Francisco fits inside Singapore ~6 times
Time Difference
16 hours apart
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).
Singapore covers 733 km². Cities with a similar urban footprint include Tehran (730 km²), Bangalore (741 km²), Hamburg (755 km²), Nairobi (696 km²), or New York (783 km²).
The straight-line distance from San Francisco to Singapore is 13,582 km (8,440 miles), with an estimated flight time of ~16h 29m.
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