Distance between Colombo, Sri Lanka and Poronaysk, Sakhalin Oblast, Russia

7510 km = 4667 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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Colombo, Sri Lanka

Country: Sri Lanka
Colombo’s coordinates: 6°55′54″ N, 79°50′52″ E
Population: 648,034
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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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