Distance between Philadelphia, Pennsylvania, USA and Welwyn Garden City, United Kingdom
5691 km = 3536 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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Philadelphia, USA
Country: USAState: Pennsylvania
Philadelphia’s coordinates: 39°57′08″ N, 75°09′49″ W
Population: 1,526,006
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Wikipedia article: Philadelphia
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Welwyn Garden City, United Kingdom
Country: United KingdomWelwyn Garden City’s coordinates: 51°48′06″ N, 0°12′24″ W
Population: 44,725
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