The calculated distance (air line) between Addis Ababa and Arsi Negele is approximately 116 miles respectively 186 kilometers.
By car or train, the actual journey to Arsi Negele is certainly longer, as only the direct route (as the crow flies) between Addis Ababa and Arsi Negele has been calculated here.
Air line (approximately)
186 kilometers
100 nautical miles