The calculated distance (air line) between Hāgere Selam and Addis Ababa is approximately 176 miles respectively 284 kilometers.
By car or train, the actual journey to Addis Ababa is certainly longer, as only the direct route (as the crow flies) between Hāgere Selam and Addis Ababa has been calculated here.
Air line (approximately)
284 kilometers
153 nautical miles