The calculated distance (air line) between Mechraa Bel Ksiri and Oued Zem is approximately 123 miles respectively 199 kilometers.
By car or train, the actual journey to Oued Zem is certainly longer, as only the direct route (as the crow flies) between Mechraa Bel Ksiri and Oued Zem has been calculated here.
Air line (approximately)
199 kilometers
107 nautical miles