The calculated distance (air line) between Maai Mahiu and Ongata Rongai is approximately 31 miles respectively 49 kilometers.
By car or train, the actual journey to Ongata Rongai is certainly longer, as only the direct route (as the crow flies) between Maai Mahiu and Ongata Rongai has been calculated here.
Air line (approximately)
49 kilometers
27 nautical miles