Distance between Rio de Janeiro, Brazil and Lang Son, Vietnam

16949 km = 10532 miles

We assume a spherical Earth as a close approximation of the true shape of the Earth (an oblate spheroid). The distance is calculated as great-circle or orthodromic distance between city centres on the surface of a sphere.

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Rio de Janeiro, Brazil

Country: Brazil
Rio de Janeiro’s coordinates: 22°54′10″ S, 43°12′27″ W
Population: 6,023,699
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Wikipedia article: Rio de Janeiro

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Lang Son, Vietnam

Country: Vietnam
Lang Son’s coordinates: 21°51′09″ N, 106°45′39″ E
Population: 55,981
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Wikipedia article: Lang Son

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Find out the distance between Lang Son and the North Pole, the South Pole, the Equator, the Tropic of Cancer, the Tropic of Capricorn, the Arctic Circle, the Antarctic Circle