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