Distance between Philadelphia, Pennsylvania, USA and Napa, California, USA

4026 km = 2501 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: USA
State: 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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Napa, USA

Country: USA
State: California
Napa’s coordinates: 38°17′49″ N, 122°17′07″ W
Population: 76,915
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Wikipedia article: Napa

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