The calculated distance (air line) between Miercurea-Ciuc and Craiova is approximately 171 miles respectively 275 kilometers.
By car or train, the actual journey to Craiova is certainly longer, as only the direct route (as the crow flies) between Miercurea-Ciuc and Craiova has been calculated here.
Air line (approximately)
275 kilometers
148 nautical miles