The calculated distance (air line) between Mollet del Vallès and Parets del Vallès is approximately 3 miles respectively 4 kilometers.
By car or train, the actual journey to Parets del Vallès is certainly longer, as only the direct route (as the crow flies) between Mollet del Vallès and Parets del Vallès has been calculated here.
Air line (approximately)
4 kilometers
2 nautical miles