Distance between Rio de Janeiro, Brazil and Ponca City, Oklahoma, USA
8717 km = 5416 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: BrazilRio 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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Ponca City, USA
Country: USAState: Oklahoma
Ponca City’s coordinates: 36°42′25″ N, 97°05′08″ W
Population: 25,387
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Wikipedia article: Ponca City
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