The calculated distance (air line) between Arenys de Munt and L'Hospitalet de Llobregat is approximately 29 miles respectively 46 kilometers.
By car or train, the actual journey to L'Hospitalet de Llobregat is certainly longer, as only the direct route (as the crow flies) between Arenys de Munt and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
46 kilometers
25 nautical miles