Distance between Perth, Australia and Head of Westport, Massachusetts, USA
18798 km = 11680 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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Perth, Australia
Country: AustraliaPerth’s coordinates: 31°57′08″ S, 115°51′41″ E
Population: 1,896,548
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Wikipedia article: Perth
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Head of Westport, USA
Country: USAState: Massachusetts
Head of Westport’s coordinates: 41°37′15″ N, 71°03′43″ W
Population: 14,809
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Wikipedia article: Head of Westport
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