Distance between Rostov-on-Don, Rostov Oblast, Russia and Kalachinsk, Omsk Oblast, Russia

2553 km = 1587 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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Rostov-on-Don, Russia

Country: Russia
Rostov-on-Don’s coordinates: 47°13′52″ N, 39°43′23″ E
Population: 1,074,482
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Wikipedia article: Rostov-on-Don

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Kalachinsk, Russia

Country: Russia
Kalachinsk’s coordinates: 55°03′10″ N, 74°34′30″ E
Population: 24,059
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