The calculated distance (air line) between Diaoubé and Méri Mbaké is approximately 173 miles respectively 278 kilometers.
By car or train, the actual journey to Méri Mbaké is certainly longer, as only the direct route (as the crow flies) between Diaoubé and Méri Mbaké has been calculated here.
Air line (approximately)
278 kilometers
150 nautical miles