Bangkok
1,569 km²
San Antonio
1,209 km²
Thailand
United States
Area Comparison
Bangkok is 1.3x larger than San Antonio
Population Comparison
Bangkok has 7.4x more people than San Antonio
Bangkok is significantly larger, covering 1.3 times the area of San Antonio. Bangkok spans 1,569 km² (606 mi²) while San Antonio covers 1,209 km² (467 mi²) — a difference of 360 km².
To put Bangkok's size in perspective, its area of 1,569 km² is roughly the same size as London. Meanwhile, San Antonio at 1,209 km² is about 1.3x smaller than London.
Bangkok's footprint is roughly about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris — pick whichever unit feels intuitive. San Antonio, by comparison, equals about 169,000 American football fields, 20 times the area of Manhattan, or 11 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 Antonio is a city in the U.S. state of Texas. It is the seventh-most populous city in the United States, the second-most populous city in Texas, and the second-most populous city in the Southern U.S., with a population of 1.43 million at the 2020 census. The Greater San Antonio metropolitan area, with an estimated 2.76 million residents, ranks as the third-largest metropolitan area in Texas and the 24th-largest in the nation. It is the county seat of Bexar County.
Also known as "Alamo City", San Antonio has an area of 1,209 km² and is home to 1.4 million people. The city dates back to 1718. Visitors come for The Alamo, San Antonio River Walk, Tower of the Americas, and much more.
San Antonio is the seventh-most populous city in the United States and second-most populous in Texas, with 1.43 million residents.
Bangkok has a population density of 6,718 people per km² — a densely populated city. San Antonio, with 1,183 people per km², is a relatively spread-out city. Bangkok is dramatically more crowded, with 5.7x the population density.
Density Gap
Bangkok is 5.7x 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 Antonio covers 1,209 km². Cities with a similar urban footprint include Rio de Janeiro (1,221 km²), Lagos (1,172 km²), Rome (1,285 km²), Los Angeles (1,302 km²), or Hong Kong (1,114 km²).
The straight-line distance from Bangkok to San Antonio is 14,799 km (9,195 miles), with an estimated flight time of ~17h 55m.
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