The calculated distance (air line) between Fenoarivo Atsinanana and Antananarivo is approximately 162 miles respectively 261 kilometers.
By car or train, the actual journey to Antananarivo is certainly longer, as only the direct route (as the crow flies) between Fenoarivo Atsinanana and Antananarivo has been calculated here.
Air line (approximately)
261 kilometers
141 nautical miles