Chennai
427 km²
San Antonio
1,209 km²
City Map Compare/Chennai vs San Antoniovs
vs
5 km
India
United States
Area Comparison
Chennai is 2.8x smaller than San Antonio
Population Comparison
Chennai has 4.6x more people than San Antonio
San Antonio is significantly larger, covering 2.8 times the area of Chennai. San Antonio spans 1,209 km² (467 mi²) while Chennai covers 427 km² (165 mi²) — a difference of 782 km². You could fit Chennai inside San Antonio approximately 2 times.
To put Chennai's size in perspective, its area of 427 km² is about 1.4x smaller than Seoul. Meanwhile, San Antonio at 1,209 km² is about 1.3x smaller than London.
In more relatable units, Chennai's 427 km² is about 60,000 American football fields, 130 times the area of Central Park, or 7 times the area of Manhattan. For San Antonio, that's about 169,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris.
Chennai, also known as Madras, is the capital and largest city of Tamil Nadu, the southernmost state of India. It is located on the Coromandel Coast of the Bay of Bengal. As per the 2011 Indian census, Chennai is the sixth-most-populous city in India and forms the fourth-most-populous urban agglomeration. The city is coterminous with Chennai district, which together with the adjoining suburbs constitutes the Chennai Metropolitan Area, one of the largest metropolitan areas of India.
Known as "Madras", Chennai covers 427 km² with a population of 6.6 million. The city was established in 1639. Chennai is known for Marina Beach, Kapaleeshwarar Temple, Fort St. George, among other attractions.
Chennai, formerly Madras, is the capital of Tamil Nadu and the sixth-most-populous city in India.
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.
Often called "Alamo City", San Antonio has an area of 1,209 km² and is home to 1.4 million people. It was established in 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.
Chennai has a population density of 15,457 people per km² — an extremely dense urban environment. San Antonio, with 1,183 people per km², is a relatively spread-out city. Chennai is dramatically more crowded, with 13.1x the population density.
Size Ratio
Chennai fits inside San Antonio ~2 times
Density Gap
Chennai is 13.1x more densely populated
Chennai covers 427 km². Cities with a similar urban footprint include Vienna (415 km²), Oslo (454 km²), Denver (401 km²), Portland (376 km²), or Philadelphia (370 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 Chennai to San Antonio is 15,287 km (9,499 miles), with an estimated flight time of ~18h 29m.
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