Distance between Sofia, Bulgaria and Boise, Idaho, USA
9617 km = 5976 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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Boise, USA
Country: USAState: Idaho
Boise’s coordinates: 43°36′48″ N, 116°12′12″ W
Population: 145,987
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Wikipedia article: Boise
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