Distance between Port Sudan, Sudan and Chiang Rai, Thailand
6518 km = 4050 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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Port Sudan, Sudan
Country: SudanPort Sudan’s coordinates: 19°37′02″ N, 37°12′59″ E
Population: 489,725
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Wikipedia article: Port Sudan
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Chiang Rai, Thailand
Country: ThailandChiang Rai’s coordinates: 19°54′30″ N, 99°49′56″ E
Population: 78,756
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Wikipedia article: Chiang Rai
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