The calculated distance (air line) between Debre Birhan and Arsi Negele is approximately 171 miles respectively 275 kilometers.
By car or train, the actual journey to Arsi Negele is certainly longer, as only the direct route (as the crow flies) between Debre Birhan and Arsi Negele has been calculated here.
Air line (approximately)
275 kilometers
148 nautical miles