Romans-sur-Isere is located in Lyon city, France at the 45.0464, 5.0562 coordinates. Distance from Romans-sur-Isere to other cities. are listed below, click on the city name to find distance between. Distance from Romans-sur-Isère to Saint-Etienne 68 km, to Grenoble 54 km, to Villeurbanne 81 km. The green marker indicates the location of Romans-sur-Isère.