The calculated distance (air line) between Sant Vicenç de Montalt and Eixample is approximately 22 miles respectively 36 kilometers.
By car or train, the actual journey to Eixample is certainly longer, as only the direct route (as the crow flies) between Sant Vicenç de Montalt and Eixample has been calculated here.
Air line (approximately)
36 kilometers
19 nautical miles