Distance between Baltimore, Maryland, USA and Aurora, Illinois, USA
1027 km = 638 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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Baltimore, USA
Country: USAState: Maryland
Baltimore’s coordinates: 39°17′25″ N, 76°36′43″ W
Population: 620,961
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Wikipedia article: Baltimore
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Aurora, USA
Country: USAState: Illinois
Aurora’s coordinates: 41°45′38″ N, 88°19′12″ W
Population: 197,899
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Wikipedia article: Aurora
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