The calculated distance (air line) between Navarcles and Caldes de Montbui is approximately 16 miles respectively 26 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 Navarcles and Caldes de Montbui has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles