Distance between Surabaya, Indonesia and Sretensk, Zabaykalsky Krai, Russia
6640 km = 4126 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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Surabaya, Indonesia
Country: IndonesiaSurabaya’s coordinates: 7°14′57″ S, 112°45′02″ E
Population: 2,374,658
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Sretensk, Russia
Country: RussiaSretensk’s coordinates: 52°14′52″ N, 117°42′30″ E
Population: 7,698
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