Distance between Patna, India and Kalachinsk, Omsk Oblast, Russia
3391 km = 2107 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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Kalachinsk, Russia
Country: RussiaKalachinsk’s coordinates: 55°03′10″ N, 74°34′30″ E
Population: 24,059
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