Distance between Lisbon, Portugal and Iriba, Chad
4038 km = 2509 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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Lisbon, Portugal
Country: PortugalLisbon’s coordinates: 38°43′00″ N, 9°07′59″ W
Population: 517,802
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Wikipedia article: Lisbon
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Iriba, Chad
Country: ChadIriba’s coordinates: 15°07′00″ N, 22°15′00″ E
Population: 1,100
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Wikipedia article: Iriba
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