The calculated distance (air line) between Arba Minch and Arsi Negele is approximately 120 miles respectively 192 kilometers.
By car or train, the actual journey to Arsi Negele is certainly longer, as only the direct route (as the crow flies) between Arba Minch and Arsi Negele has been calculated here.
Air line (approximately)
192 kilometers
104 nautical miles