Distance between Seoul, South Korea and Yancheng, China
775 km = 482 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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Seoul, South Korea
Country: South KoreaSeoul’s coordinates: 37°33′57″ N, 126°58′42″ E
Population: 10,349,312
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Yancheng, China
Country: ChinaYancheng’s coordinates: 33°21′27″ N, 120°09′26″ E
Population: 628,441
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Wikipedia article: Yancheng
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