The calculated distance (air line) between Calafat and Drobeta-Turnu Severin is approximately 46 miles respectively 74 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 Calafat and Drobeta-Turnu Severin has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles