The calculated distance (air line) between Beni Mellal and Oued Zem is approximately 39 miles respectively 62 kilometers.
By car or train, the actual journey to Oued Zem is certainly longer, as only the direct route (as the crow flies) between Beni Mellal and Oued Zem has been calculated here.
Air line (approximately)
62 kilometers
33 nautical miles