Bangkok
1,569 km²
San Diego
964 km²
Thailand
United States
Area Comparison
Bangkok is 1.6x larger than San Diego
Population Comparison
Bangkok has 7.6x more people than San Diego
In terms of area, Bangkok is 1.6x the size of San Diego. Bangkok spans 1,569 km² (606 mi²) while San Diego covers 964 km² (372 mi²) — a difference of 605 km².
To put Bangkok's size in perspective, its area of 1,569 km² is roughly the same size as London. Meanwhile, San Diego at 964 km² is roughly the same size as Berlin.
Picture Bangkok another way: its area is large enough to fit about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris. San Diego, by comparison, equals about 135,000 American football fields, 16 times the area of Manhattan, or 9 times the area of Paris.
Bangkok, officially known in Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies 1,568.7 square kilometres (605.7 sq mi) in the Chao Phraya River delta in central Thailand and has an estimated population of 11.4 million people as of 2024, 15.9% of the country's population.
Known as "City of Angels", Bangkok covers 1,569 km² with a population of 10.5 million. The city was established in 1782. Bangkok is known for Grand Palace, Wat Arun, Wat Pho, among other attractions. The city's main transit system is the BTS Skytrain & MRT.
Bangkok's official Thai name is Krung Thep Maha Nakhon, with the full ceremonial name being one of the longest place names in the world.
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.
Bangkok has a population density of 6,718 people per km² — a densely populated city. San Diego, with 1,442 people per km², is a relatively spread-out city. Bangkok is dramatically more crowded, with 4.7x the population density.
Density Gap
Bangkok is 4.7x more densely populated
Bangkok covers 1,569 km². Cities with a similar urban footprint include London (1,572 km²), Bogotá (1,578 km²), São Paulo (1,521 km²), Johannesburg (1,644 km²), or Mexico City (1,485 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 Bangkok to San Diego is 13,480 km (8,376 miles), with an estimated flight time of ~16h 22m.
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