The calculated distance (air line) between La Roca del Vallès and Sant Andreu de Llavaneres is approximately 8 miles respectively 13 kilometers.
By car or train, the actual journey to Sant Andreu de Llavaneres is certainly longer, as only the direct route (as the crow flies) between La Roca del Vallès and Sant Andreu de Llavaneres has been calculated here.
Air line (approximately)
13 kilometers
7 nautical miles