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