Distance between Sofia, Bulgaria and Antioch, California, USA
10386 km = 6454 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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Sofia, Bulgaria
Country: BulgariaSofia’s coordinates: 42°41′51″ N, 23°19′26″ E
Population: 1,152,556
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Antioch, USA
Country: USAState: California
Antioch’s coordinates: 38°00′17″ N, 121°48′20″ W
Population: 102,372
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Wikipedia article: Antioch
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