The calculated distance (air line) between Badalona and Cerdanyola del Vallès is approximately 6 miles respectively 10 kilometers.
By car or train, the actual journey to Cerdanyola del Vallès is certainly longer, as only the direct route (as the crow flies) between Badalona and Cerdanyola del Vallès has been calculated here.
Air line (approximately)
10 kilometers
5 nautical miles