The calculated distance (air line) between Nefas Mewch’a and Debre Birhan is approximately 159 miles respectively 256 kilometers.
By car or train, the actual journey to Debre Birhan is certainly longer, as only the direct route (as the crow flies) between Nefas Mewch’a and Debre Birhan has been calculated here.
Air line (approximately)
256 kilometers
138 nautical miles