The distance between Siena (Tuscany, Italy) and Aurora (Colorado, USA) is ca. 8.778,3 km (air line).
Distance between Siena and other cities and places worldwide
Distance between Siena and other major cities
Los Angeles10006.2 km
Vancouver8807.9 km- New York City6721.6 km
Mexico CIty10081.1 km
London1250.8 km
Paris926.2 km
Berlin1035.1 km
Stockholm1839 km
Tokyo9804.5 km