Distance between Kolkata, India and Barnaul, Altai Krai, Russia
3450 km = 2144 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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Kolkata, India
Country: IndiaKolkata’s coordinates: 22°33′45″ N, 88°21′46″ E
Population: 4,631,392
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Barnaul, Russia
Country: RussiaBarnaul’s coordinates: 53°21′38″ N, 83°45′48″ E
Population: 599,579
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