The calculated distance (air line) between Manakara and Ambatofinandrahana is approximately 135 miles respectively 217 kilometers.
By car or train, the actual journey to Ambatofinandrahana is certainly longer, as only the direct route (as the crow flies) between Manakara and Ambatofinandrahana has been calculated here.
Air line (approximately)
217 kilometers
117 nautical miles