The calculated distance (air line) between Terrassa and Cornellà de Llobregat is approximately 15 miles respectively 25 kilometers.
By car or train, the actual journey to Cornellà de Llobregat is certainly longer, as only the direct route (as the crow flies) between Terrassa and Cornellà de Llobregat has been calculated here.
Air line (approximately)
25 kilometers
13 nautical miles