Paris
105 km²
San Diego
964 km²
France
United States
Area Comparison
Paris is 9.2x smaller than San Diego
Population Comparison
Paris has 1.6x more people than San Diego
Yes — San Diego is 9.2x larger than Paris by area. San Diego spans 964 km² (372 mi²) while Paris covers 105 km² (41 mi²) — a difference of 859 km². You could fit Paris inside San Diego approximately 9 times.
To put Paris's size in perspective, its area of 105 km² is about 1.2x smaller than San Francisco. Meanwhile, San Diego at 964 km² is roughly the same size as Berlin.
In more relatable units, Paris's 105 km² is about 15,000 American football fields, 52 times the area of Monaco, or 31 times the area of Central Park. For San Diego, that's about 135,000 American football fields, 16 times the area of Manhattan, or 9 times the area of Paris.
Paris is the capital and largest city of France, with an estimated city population of 2.04 million in an area of 105.4 km2 (40.7 sq mi), and a metropolitan population of 13.2 million as of January 2026. Located on the river Seine in the centre of the Île-de-France region, it is the largest metropolitan area and fourth-most populous city in the European Union (EU).
Known as "City of Light", Paris covers 105 km² with a population of 2.2 million. The city was founded around 250 BC. Paris is known for Eiffel Tower, Louvre Museum, Notre-Dame Cathedral, among other attractions. The city's main transit system is the Paris Métro.
Paris packs 2.04 million people into just 105 km2, giving it one of the highest urban densities in Europe.
San Diego is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. It is the eighth-most populous city in the U.S. and second-most populous city in California with a population of over 1.4 million, while the San Diego metropolitan area with over 3.3 million residents is the 18th-largest metropolitan area in the country. San Diego is the county seat of San Diego County.
Nicknamed "America's Finest City", San Diego has an area of 964 km² and is home to 1.4 million people. The city dates back to 1769. Visitors come for San Diego Zoo, Balboa Park, Coronado Beach, and much more.
San Diego sits directly on the Mexico-United States border, making it California's southwesternmost major city.
Paris has a population density of 20,571 people per km² — one of the most densely packed urban areas on Earth. San Diego, with 1,442 people per km², is a relatively spread-out city. Paris is dramatically more crowded, with 14.3x the population density.
Size Ratio
Paris fits inside San Diego ~9 times
Density Gap
Paris is 14.3x more densely populated
History
Paris is ~2,019 years older
Paris covers 105 km². Cities with a similar urban footprint include Barcelona (101 km²), Lisbon (100 km²), Vancouver (115 km²), San Francisco (121 km²), or Copenhagen (91 km²).
San Diego covers 964 km². Cities with a similar urban footprint include Abu Dhabi (972 km²), Dallas (997 km²), Berlin (892 km²), Santiago (838 km²), or Hong Kong (1,114 km²).
The straight-line distance from Paris to San Diego is 9,149 km (5,685 miles), with an estimated flight time of ~11h 16m.
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