Distance between Lisbon, Portugal and Ponca City, Oklahoma, USA
7420 km = 4611 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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Lisbon, Portugal
Country: PortugalLisbon’s coordinates: 38°43′00″ N, 9°07′59″ W
Population: 517,802
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Wikipedia article: Lisbon
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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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