The calculated distance (air line) between Ciutat Vella and Esplugues de Llobregat is approximately 4 miles respectively 7 kilometers.
By car or train, the actual journey to Esplugues de Llobregat is certainly longer, as only the direct route (as the crow flies) between Ciutat Vella and Esplugues de Llobregat has been calculated here.
Air line (approximately)
7 kilometers
4 nautical miles