The calculated distance (air line) between Mwingi and Ongata Rongai is approximately 95 miles respectively 153 kilometers.
By car or train, the actual journey to Ongata Rongai is certainly longer, as only the direct route (as the crow flies) between Mwingi and Ongata Rongai has been calculated here.
Air line (approximately)
153 kilometers
82 nautical miles