Distance between Cologne, Germany and Troisdorf, Germany

20 km = 12 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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Cologne, Germany

Country: Germany
Cologne’s coordinates: 50°55′59″ N, 6°57′00″ E
Population: 963,395
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Wikipedia article: Cologne

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Troisdorf, Germany

Country: Germany
Troisdorf’s coordinates: 50°48′32″ N, 7°08′58″ E
Population: 74,749
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Wikipedia article: Troisdorf

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