Distance between Haiphong, Vietnam and Roi Et, Thailand
624 km = 387 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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Haiphong, Vietnam
Country: VietnamHaiphong’s coordinates: 20°51′53″ N, 106°41′00″ E
Population: 602,695
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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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