Distance between Dallas, Texas, USA and Decatur, Illinois, USA
1054 km = 655 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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Dallas, USA
Country: USAState: Texas
Dallas’ coordinates: 32°46′59″ N, 96°48′24″ W
Population: 1,197,816
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Decatur, USA
Country: USAState: Illinois
Decatur’s coordinates: 39°50′25″ N, 88°57′17″ W
Population: 76,122
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Wikipedia article: Decatur
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