The calculated distance (air line) between Caldes de Montbui and Mollet del Vallès is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Mollet del Vallès is certainly longer, as only the direct route (as the crow flies) between Caldes de Montbui and Mollet del Vallès has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles