Distance between Cairo, Egypt and Naperville, Illinois, USA
9910 km = 6158 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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Cairo, Egypt
Country: EgyptCairo’s coordinates: 30°03′45″ N, 31°14′58″ E
Population: 7,734,614
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Wikipedia article: Cairo
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Naperville, USA
Country: USAState: Illinois
Naperville’s coordinates: 41°47′09″ N, 88°08′50″ W
Population: 141,853
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Wikipedia article: Naperville
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