Atlanta
348 km²
Chennai
427 km²
City Map Compare/Atlanta vs Chennaivs
vs
5 km
United States
India
Area Comparison
Atlanta is 1.2x smaller than Chennai
Population Comparison
Atlanta has 13.2x fewer people than Chennai
Chennai is significantly larger, covering 1.2 times the area of Atlanta. Chennai spans 427 km² (165 mi²) while Atlanta covers 348 km² (134 mi²) — a difference of 79 km².
To put Atlanta's size in perspective, its area of 348 km² is about 1.6x the size of Amsterdam. Meanwhile, Chennai at 427 km² is about 1.4x smaller than Seoul.
In more relatable units, Atlanta's 348 km² is about 49,000 American football fields, 170 times the area of Monaco, or 100 times the area of Central Park. For Chennai, that's about 60,000 American football fields, 130 times the area of Central Park, or 7 times the area of Manhattan.
Atlanta is the capital and most populous city of the U.S. state of Georgia. It is the county seat of Fulton County and extends into neighboring DeKalb County. With a population of 498,715 at the 2020 census and an estimated 520,070 in 2024, Atlanta is the eighth-most populous city in the Southeast and the 36th-most populous city in the United States. Atlanta is classified as a Beta+ global city.
Known as "The ATL", Atlanta covers 348 km² with a population of 0.5 million. The city was established in 1845. Atlanta is known for Coca-Cola headquarters, Hartsfield-Jackson Airport, Georgia Aquarium, among other attractions.
Atlanta is Georgia's capital and most populous city, with around 520,070 residents estimated in 2024.
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.
Nicknamed "Madras", Chennai has an area of 427 km² and is home to 6.6 million people. The city dates back to 1639. Visitors come for Marina Beach, Kapaleeshwarar Temple, Fort St. George, and much more.
Chennai, formerly Madras, is the capital of Tamil Nadu and the sixth-most-populous city in India.
Atlanta has a population density of 1,437 people per km² — a relatively spread-out city. Chennai, with 15,457 people per km², is an extremely dense urban environment. Chennai is dramatically more crowded, with 10.8x the population density.
Density Gap
Chennai is 10.8x more densely populated
History
Chennai is ~206 years older
Atlanta covers 348 km². Cities with a similar urban footprint include Dhaka (368 km²), Seattle (369 km²), Philadelphia (370 km²), Portland (376 km²), or Munich (311 km²).
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).
The straight-line distance from Atlanta to Chennai is 14,560 km (9,047 miles), with an estimated flight time of ~17h 38m.
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