The calculated distance (air line) between Debre Sīna and Debre Mark’os is approximately 142 miles respectively 229 kilometers.
By car or train, the actual journey to Debre Mark’os is certainly longer, as only the direct route (as the crow flies) between Debre Sīna and Debre Mark’os has been calculated here.
Air line (approximately)
229 kilometers
123 nautical miles