The calculated distance (air line) between Parets del Vallès and Caldes de Montbui is approximately 5 miles respectively 9 kilometers.
By car or train, the actual journey to Caldes de Montbui is certainly longer, as only the direct route (as the crow flies) between Parets del Vallès and Caldes de Montbui has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles