The calculated distance (air line) between Sant Quirze del Vallès and Castellar del Vallès is approximately 6 miles respectively 9 kilometers.
By car or train, the actual journey to Castellar del Vallès is certainly longer, as only the direct route (as the crow flies) between Sant Quirze del Vallès and Castellar del Vallès has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles