The calculated distance (air line) between Kelaat Mgouna and Oued Zem is approximately 115 miles respectively 185 kilometers.
By car or train, the actual journey to Oued Zem is certainly longer, as only the direct route (as the crow flies) between Kelaat Mgouna and Oued Zem has been calculated here.
Air line (approximately)
185 kilometers
100 nautical miles