Distance between Sofia, Bulgaria and El Centro, California, USA
10646 km = 6615 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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Wikipedia article: Sofia
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El Centro, USA
Country: USAState: California
El Centro’s coordinates: 32°47′31″ N, 115°33′46″ W
Population: 42,598
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Wikipedia article: El Centro
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