Distance between Sydney, Australia and Porto, Portugal
18086 km = 11238 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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Sydney, Australia
Country: AustraliaSydney’s coordinates: 33°52′04″ S, 151°12′26″ E
Population: 4,627,345
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Wikipedia article: Sydney
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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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