Distance between Phoenix, Arizona, USA and Gaithersburg, Maryland, USA
3172 km = 1971 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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Phoenix, USA
Country: USAState: Arizona
Phoenix’s coordinates: 33°26′54″ N, 112°04′26″ W
Population: 1,445,632
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Gaithersburg, USA
Country: USAState: Maryland
Gaithersburg’s coordinates: 39°08′36″ N, 77°12′04″ W
Population: 59,933
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