The calculated distance (air line) between Diourbel and Ndibène Dahra is approximately 70 miles respectively 112 kilometers.
By car or train, the actual journey to Ndibène Dahra is certainly longer, as only the direct route (as the crow flies) between Diourbel and Ndibène Dahra has been calculated here.
Air line (approximately)
112 kilometers
61 nautical miles