Distance between Patna, India and Concord, California, USA
12413 km = 7713 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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Concord, USA
Country: USAState: California
Concord’s coordinates: 37°58′40″ N, 122°01′51″ W
Population: 122,067
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