Distance between Saint Petersburg, Russia and Ryazan, Ryazan Oblast, Russia
816 km = 507 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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Saint Petersburg, Russia
Country: RussiaSaint Petersburg’s coordinates: 59°56′19″ N, 30°18′50″ E
Population: 5,028,000
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Ryazan, Russia
Country: RussiaRyazan’s coordinates: 54°37′36″ N, 39°41′29″ E
Population: 520,173
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