The calculated distance (air line) between Oulad M'Rah and Mohammedia is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Mohammedia is certainly longer, as only the direct route (as the crow flies) between Oulad M'Rah and Mohammedia has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles