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