Distance between Kolkata, India and Redwood City, California, USA
12624 km = 7844 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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Wikipedia article: Kolkata
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Redwood City, USA
Country: USAState: California
Redwood City’s coordinates: 37°29′06″ N, 122°14′10″ W
Population: 76,815
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