The calculated distance (air line) between Balaruc-les-Bains and Castelnau-le-Lez is approximately 17 miles respectively 28 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 Balaruc-les-Bains and Castelnau-le-Lez has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles