The calculated distance (air line) between Tionk Essil and Niakoul Rab is approximately 147 miles respectively 237 kilometers.
By car or train, the actual journey to Niakoul Rab is certainly longer, as only the direct route (as the crow flies) between Tionk Essil and Niakoul Rab has been calculated here.
Air line (approximately)
237 kilometers
128 nautical miles