The calculated distance (air line) between Parets del Vallès and Vilassar de Mar is approximately 10 miles respectively 15 kilometers.
By car or train, the actual journey to Vilassar de Mar is certainly longer, as only the direct route (as the crow flies) between Parets del Vallès and Vilassar de Mar has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles