The distance between Roskilde (Sjælland, Denmark) and Dayton (Ohio, USA) is ca. 6.813,5 km (air line).
Distance between Roskilde and other cities and places worldwide
Distance between Roskilde and other major cities
Los Angeles8985.6 km
Vancouver7634.1 km- New York City6155.9 km
Mexico CIty9483.7 km
London925.4 km
Paris1001.4 km
Berlin357.2 km
Stockholm544 km
Tokyo8721.9 km