The calculated distance (air line) between Runcu and Drobeta-Turnu Severin is approximately 41 miles respectively 66 kilometers.
By car or train, the actual journey to Drobeta-Turnu Severin is certainly longer, as only the direct route (as the crow flies) between Runcu and Drobeta-Turnu Severin has been calculated here.
Air line (approximately)
66 kilometers
36 nautical miles