Moscow
2,511 km²
San Francisco
121 km²
Russia
USA
Area Comparison
Moscow is 20.8x larger than San Francisco
Population Comparison
Moscow has 14.4x more people than San Francisco
Moscow is significantly larger, covering 20.8 times the area of San Francisco. Moscow spans 2,511 km² (970 mi²) while San Francisco covers 121 km² (47 mi²) — a difference of 2,390 km². You could fit San Francisco inside Moscow approximately 20 times.
To put Moscow's size in perspective, its area of 2,511 km² is roughly the same size as Luxembourg. Meanwhile, San Francisco at 121 km² is about 1.2x the size of Paris (city proper).
Moscow's footprint is roughly about 352,000 American football fields, 42 times the area of Manhattan, or 24 times the area of Paris — pick whichever unit feels intuitive. San Francisco works out to about 17,000 American football fields, 60 times the area of Monaco, or 35 times the area of Central Park.
Moscow is the capital and largest city of Russia, standing on the Moskva River in Central Russia. It has a population estimated at over 13 million residents within the city limits, over 19.1 million residents in the urban area, and over 21.5 million residents in its metropolitan area. The city covers an area of 2,511 square kilometers (970 mi2), while the urban area covers 5,891 square kilometers (2,275 mi2), and the metropolitan area covers over 26,000 square kilometers (10,000 mi2).
Known as "Third Rome", Moscow covers 2,511 km² with a population of 12.5 million. The city was established in 1147. Moscow is known for Red Square, Kremlin, Saint Basil's Cathedral, among other attractions. The city's main transit system is the Moscow Metro.
Moscow's metropolitan area covers over 26,000 square kilometers, making it one of the largest metropolitan footprints in Europe.
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. Its history stretches back to 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.
Looking beyond city limits, the San Francisco metropolitan area covers 6,984 km², which is 1.2x larger than greater Moscow at 5,891 km². The Moscow metro area is also more populous, with 17.1 million people compared to 4.7 million.
Moscow has a population density of 4,994 people per km² — a moderately dense city. San Francisco, with 7,190 people per km², is a densely populated city. Both cities have comparable density, though San Francisco is slightly more compact.
This comparison spans continents — Moscow in Europe versus San Francisco in North America. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Moscow has a humid continental climate while San Francisco experiences Mediterranean conditions. Winters differ dramatically: San Francisco stays around 10°C while Moscow drops to -8°C. When it's noon in Moscow, it's 1:00 AM in San Francisco — a 11-hour time difference.
Size Ratio
San Francisco fits inside Moscow ~20 times
Density Gap
San Francisco is 1.4x more densely populated
Time Difference
11 hours apart
History
Moscow is ~629 years older
Moscow covers 2,511 km². Cities with a similar urban footprint include Cape Town (2,455 km²), Lima (2,672 km²), Tokyo (2,194 km²), Ho Chi Minh City (2,061 km²), or Cairo (3,085 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 Moscow to San Francisco is 9,444 km (5,868 miles), with an estimated flight time of ~11h 37m.
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