Distance between Niamey, Niger and Rio de Janeiro, Brazil

6389 km = 3970 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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Niamey, Niger

Country: Niger
Niamey’s coordinates: 13°30′49″ N, 2°06′35″ E
Population: 774,235
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Wikipedia article: Niamey

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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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