Distance between Perth, Australia and Joliet, Illinois, USA
17661 km = 10974 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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Joliet, USA
Country: USAState: Illinois
Joliet’s coordinates: 41°31′30″ N, 88°05′00″ W
Population: 147,433
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Wikipedia article: Joliet
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