Hangzhou
16,854 km²
San Diego
964 km²
People's Republic of China
United States
Area Comparison
Hangzhou is 17.5x larger than San Diego
Population Comparison
Hangzhou has 8.6x more people than San Diego
Yes — Hangzhou is 17.5x larger than San Diego by area. Hangzhou spans 16,854 km² (6,507 mi²) while San Diego covers 964 km² (372 mi²) — a difference of 15,890 km². You could fit San Diego inside Hangzhou approximately 17 times.
To put Hangzhou's size in perspective, its area of 16,854 km² is about 2.7x the size of Shanghai. Meanwhile, San Diego at 964 km² is roughly the same size as Berlin.
Hangzhou's footprint is roughly about 2,400,000 American football fields, 160 times the area of Paris, or 140 times the area of San Francisco — pick whichever unit feels intuitive. For San Diego, that's about 135,000 American football fields, 16 times the area of Manhattan, or 9 times the area of Paris.
Hangzhou is the capital city and most populous city of Zhejiang province, China, situated at the intersection of the southern terminus of the Grand Canal and the head of Hangzhou Bay. Renowned as one of the Eight Ancient Capitals of China, Hangzhou is celebrated for its cultural heritage and its West Lake, a UNESCO World Heritage site.
Known as "Paradise on Earth", Hangzhou covers 16,854 km² with a population of 11.9 million. Hangzhou is known for West Lake, Grand Canal terminus, Lingyin Temple, among other attractions.
Hangzhou's West Lake is a UNESCO World Heritage site, drawing visitors to its celebrated cultural landscape.
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. It was established in 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.
Hangzhou has a population density of 708 people per km² — a relatively spread-out city. San Diego, with 1,442 people per km², is a relatively spread-out city. San Diego is noticeably denser, packing 2.0 times more people per square kilometer.
Size Ratio
San Diego fits inside Hangzhou ~17 times
Density Gap
San Diego is 2.0x more densely populated
Hangzhou covers 16,854 km². Cities with a similar urban footprint include Beijing (16,411 km²), Brisbane (15,826 km²), Chengdu (14,378 km²), Sydney (12,368 km²), or Xi'an (10,097 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).
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The straight-line distance from Hangzhou to San Diego is 10,774 km (6,695 miles), with an estimated flight time of ~13h 11m.
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