The calculated distance (air line) between Taradell and Caldes de Montbui is approximately 18 miles respectively 29 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 Taradell and Caldes de Montbui has been calculated here.
Air line (approximately)
29 kilometers
15 nautical miles