The calculated distance (air line) between Douane and Zaouiat Djedidi is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Zaouiat Djedidi is certainly longer, as only the direct route (as the crow flies) between Douane and Zaouiat Djedidi has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles