The calculated distance (air line) between Miarinarivo and Tsiroanomandidy is approximately 58 miles respectively 93 kilometers.
By car or train, the actual journey to Tsiroanomandidy is certainly longer, as only the direct route (as the crow flies) between Miarinarivo and Tsiroanomandidy has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles