Distance between Barnaul, Altai Krai, Russia and Roi Et, Thailand
4500 km = 2796 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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Barnaul, Russia
Country: RussiaBarnaul’s coordinates: 53°21′38″ N, 83°45′48″ E
Population: 599,579
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Roi Et, Thailand
Country: ThailandRoi Et’s coordinates: 16°03′24″ N, 103°39′11″ E
Population: 39,328
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