Chennai
427 km²
Rio de Janeiro
1,221 km²
India
Brazil
Area Comparison
Chennai is 2.9x smaller than Rio de Janeiro
Population Comparison
Chennai has 1.0x fewer people than Rio de Janeiro
Rio de Janeiro is significantly larger, covering 2.9 times the area of Chennai. Rio de Janeiro spans 1,221 km² (471 mi²) while Chennai covers 427 km² (165 mi²) — a difference of 794 km². You could fit Chennai inside Rio de Janeiro approximately 2 times.
To put Chennai's size in perspective, its area of 427 km² is about 1.4x smaller than Seoul. Meanwhile, Rio de Janeiro at 1,221 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. Rio de Janeiro, by comparison, equals about 171,000 American football fields, 21 times the area of Manhattan, or 12 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.
Rio de Janeiro, also known simply as Rio, is the capital of the state of Rio de Janeiro. It is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous city in the Americas.
Nicknamed "Cidade Maravilhosa", Rio de Janeiro has an area of 1,221 km² and is home to 6.8 million people. It was established in 1565. Visitors come for Christ the Redeemer, Sugarloaf Mountain, Copacabana beach, and much more. Getting around is easy with the MetrôRio.
Rio de Janeiro is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous in the Americas.
Chennai has a population density of 15,457 people per km² — an extremely dense urban environment. Rio de Janeiro, with 5,528 people per km², is a densely populated city. Chennai is noticeably denser, packing 2.8 times more people per square kilometer.
Size Ratio
Chennai fits inside Rio de Janeiro ~2 times
Density Gap
Chennai is 2.8x 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).
Rio de Janeiro covers 1,221 km². Cities with a similar urban footprint include San Antonio (1,209 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 Rio de Janeiro is 13,970 km (8,681 miles), with an estimated flight time of ~16h 56m.
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