Distance between Washington D.C., Washington, D.C., USA and Ponca City, Oklahoma, USA
1777 km = 1104 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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Washington D.C., USA
Country: USAState: Washington, D.C.
Washington D.C.’s coordinates: 38°53′42″ N, 77°02′10″ W
Population: 601,723
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Wikipedia article: Washington D.C.
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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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