The calculated distance (air line) between Manlleu and Arenys de Munt is approximately 30 miles respectively 48 kilometers.
By car or train, the actual journey to Arenys de Munt is certainly longer, as only the direct route (as the crow flies) between Manlleu and Arenys de Munt has been calculated here.
Air line (approximately)
48 kilometers
26 nautical miles