Distance between Incheon, South Korea and Ponca City, Oklahoma, USA

10631 km = 6606 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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Incheon, South Korea

Country: South Korea
Incheon’s coordinates: 37°27′23″ N, 126°42′18″ E
Population: 2,628,000
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Wikipedia article: Incheon

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Ponca City, USA

Country: USA
State: 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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