The calculated distance (air line) between Sant Vicenç de Castellet and Sant Martí is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Sant Martí is certainly longer, as only the direct route (as the crow flies) between Sant Vicenç de Castellet and Sant Martí has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles