The calculated distance (air line) between Mermoz Boabab and Niakoul Rab is approximately 15 miles respectively 23 kilometers.
By car or train, the actual journey to Niakoul Rab is certainly longer, as only the direct route (as the crow flies) between Mermoz Boabab and Niakoul Rab has been calculated here.
Air line (approximately)
23 kilometers
13 nautical miles