The calculated distance (air line) between Granollers and Sant Andreu de Llavaneres is approximately 11 miles respectively 17 kilometers.
By car or train, the actual journey to Sant Andreu de Llavaneres is certainly longer, as only the direct route (as the crow flies) between Granollers and Sant Andreu de Llavaneres has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles