Distance between Rostov-on-Don, Rostov Oblast, Russia and Portland, Texas, USA
10632 km = 6607 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: RussiaRostov-on-Don’s coordinates: 47°13′52″ N, 39°43′23″ E
Population: 1,074,482
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Portland, USA
Country: USAState: Texas
Portland’s coordinates: 27°52′38″ N, 97°19′25″ W
Population: 15,099
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