Distance between Patna, India and Changsha, China
2773 km = 1723 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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Patna, India
Country: IndiaPatna’s coordinates: 25°35′38″ N, 85°08′08″ E
Population: 1,599,920
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Changsha, China
Country: ChinaChangsha’s coordinates: 28°11′55″ N, 112°58′15″ E
Population: 3,093,980
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