The calculated distance (air line) between Ripoll and Caldes de Montbui is approximately 39 miles respectively 63 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 Ripoll and Caldes de Montbui has been calculated here.
Air line (approximately)
63 kilometers
34 nautical miles