Distance between Haiphong, Vietnam and Poronaysk, Sakhalin Oblast, Russia

4504 km = 2799 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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Haiphong, Vietnam

Country: Vietnam
Haiphong’s coordinates: 20°51′53″ N, 106°41′00″ E
Population: 602,695
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Wikipedia article: Haiphong

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Poronaysk, Russia

Country: Russia
Poronaysk’s coordinates: 49°13′18″ N, 143°05′48″ E
Population: 16,677
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