The calculated distance (air line) between Antananarivo and Tsiroanomandidy is approximately 98 miles respectively 158 kilometers.
By car or train, the actual journey to Tsiroanomandidy is certainly longer, as only the direct route (as the crow flies) between Antananarivo and Tsiroanomandidy has been calculated here.
Air line (approximately)
158 kilometers
85 nautical miles