Distance between Chicago, Illinois, USA and Chelmsford, United Kingdom
6388 km = 3969 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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Chicago, USA
Country: USAState: Illinois
Chicago’s coordinates: 41°51′00″ N, 87°39′00″ W
Population: 2,695,598
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Chelmsford, United Kingdom
Country: United KingdomChelmsford’s coordinates: 51°44′08″ N, 0°28′10″ E
Population: 102,671
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