Distance between Mashhad, Iran and Poronaysk, Sakhalin Oblast, Russia
6622 km = 4115 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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Mashhad, Iran
Country: IranMashhad’s coordinates: 36°18′56″ N, 59°34′04″ E
Population: 2,307,177
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Poronaysk, Russia
Country: RussiaPoronaysk’s coordinates: 49°13′18″ N, 143°05′48″ E
Population: 16,677
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