Distance between Perth, Australia and Grand Rapids, Michigan, USA
17785 km = 11051 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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Grand Rapids, USA
Country: USAState: Michigan
Grand Rapids’ coordinates: 42°57′48″ N, 85°40′05″ W
Population: 188,040
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Wikipedia article: Grand Rapids
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