Distance between Hanoi, Vietnam and Roxby Downs, Australia
6634 km = 4122 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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Hanoi, Vietnam
Country: VietnamHanoi’s coordinates: 21°01′28″ N, 105°50′28″ E
Population: 1,431,270
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Roxby Downs, Australia
Country: AustraliaRoxby Downs’ coordinates: 30°33′46″ S, 136°53′43″ E
Population: 4,055
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Wikipedia article: Roxby Downs
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