Distance between Sofia, Bulgaria and Istanbul, Turkey

503 km = 312 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: Bulgaria
Sofia’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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Istanbul, Turkey

Country: Turkey
Istanbul’s coordinates: 41°00′49″ N, 28°56′58″ E
Population: 11,174,257
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Wikipedia article: Istanbul

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