Distance between Pretoria, South Africa and Boulder, Colorado, USA
15464 km = 9609 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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Pretoria, South Africa
Country: South AfricaPretoria’s coordinates: 25°44′41″ S, 28°11′16″ E
Population: 1,619,438
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Wikipedia article: Pretoria
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Boulder, USA
Country: USAState: Colorado
Boulder’s coordinates: 40°00′53″ N, 105°16′13″ W
Population: 97,385
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Wikipedia article: Boulder
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