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