The calculated distance (air line) between Nioro du Rip and Méri Mbaké is approximately 70 miles respectively 112 kilometers.
By car or train, the actual journey to Méri Mbaké is certainly longer, as only the direct route (as the crow flies) between Nioro du Rip and Méri Mbaké has been calculated here.
Air line (approximately)
112 kilometers
60 nautical miles