The calculated distance (air line) between Ambohidratrimo and Fianarantsoa is approximately 183 miles respectively 295 kilometers.
By car or train, the actual journey to Fianarantsoa is certainly longer, as only the direct route (as the crow flies) between Ambohidratrimo and Fianarantsoa has been calculated here.
Air line (approximately)
295 kilometers
159 nautical miles