The distance between Riverside (California, USA) and Sintra (Lisboa Region, Portugal) is ca. 9.047,4 km (air line).
Distance between Riverside and other cities and places worldwide
Distance between Riverside and other major cities
Los Angeles78.9 km
Vancouver1764.4 km- New York City3874.6 km
Mexico CIty2421 km
London8720.7 km
Paris9048.4 km
Berlin9282.9 km
Stockholm8861.3 km
Tokyo8875.9 km