Distance between Boston, Massachusetts, USA and Loures, Portugal

5129 km = 3187 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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Boston, USA

Country: USA
State: Massachusetts
Boston’s coordinates: 42°21′30″ N, 71°03′35″ W
Population: 617,594
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Wikipedia article: Boston

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Loures, Portugal

Country: Portugal
Loures’ coordinates: 38°49′51″ N, 9°10′06″ W
Population: 66,231
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Wikipedia article: Loures

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