Distance between Porto, Portugal and Hanoi, Vietnam
10369 km = 6443 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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Porto, Portugal
Country: PortugalPorto’s coordinates: 41°08′58″ N, 8°36′39″ W
Population: 249,633
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Wikipedia article: Porto
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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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Wikipedia article: Hanoi
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