Distance between Sofia, Bulgaria and Okha, Sakhalin Oblast, Russia
7873 km = 4892 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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Okha, Russia
Country: RussiaOkha’s coordinates: 53°35′23″ N, 142°57′11″ E
Population: 26,560
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Wikipedia article: Okha
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