Chennai
427 km²
Seoul
605 km²
City Map Compare/Chennai vs Seoulvs
vs
5 km
India
South Korea
Area Comparison
Chennai is 1.4x smaller than Seoul
Population Comparison
Chennai has 1.5x fewer people than Seoul
In terms of area, Seoul is 1.4x the size of Chennai. Seoul spans 605 km² (234 mi²) while Chennai covers 427 km² (165 mi²) — a difference of 178 km².
To put Chennai's size in perspective, its area of 427 km² is about 1.4x smaller than Seoul. Meanwhile, Seoul at 605 km² is about 1.3x smaller than New York City.
Chennai's footprint is roughly about 60,000 American football fields, 130 times the area of Central Park, or 7 times the area of Manhattan — pick whichever unit feels intuitive. For Seoul, that's about 85,000 American football fields, 180 times the area of Central Park, or 10 times the area of Manhattan.
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.
Seoul, officially Seoul Special Metropolitan City, is the capital and largest city of South Korea, and the largest city in the whole of Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's sixth largest metropolitan economy in 2022, behind New York, Tokyo, Los Angeles, Paris, and London, and hosts more than half of South Korea's population.
Seoul has an area of 605 km² and is home to 9.8 million people. Its history stretches back to 18 BC. Visitors come for Gyeongbokgung Palace, Gangnam district, Myeongdong shopping, and much more. Getting around is easy with the Seoul Metro.
Seoul Metropolitan Area emerged as the world's sixth largest metropolitan economy in 2022, behind only NYC, Tokyo, LA, Paris, and London.
Chennai has a population density of 15,457 people per km² — an extremely dense urban environment. Seoul, with 16,149 people per km², is an extremely dense urban environment. Both cities have comparable density, though Seoul is slightly more compact.
History
Seoul is ~1,657 years older
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).
Seoul covers 605 km². Cities with a similar urban footprint include Chicago (606 km²), Madrid (604 km²), Mumbai (603 km²), Toronto (630 km²), or Hyderabad (650 km²).
The straight-line distance from Chennai to Seoul is 5,352 km (3,325 miles), with an estimated flight time of ~6h 48m.
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