The calculated distance (air line) between Dej and Râmnicu Vâlcea is approximately 144 miles respectively 231 kilometers.
By car or train, the actual journey to Râmnicu Vâlcea is certainly longer, as only the direct route (as the crow flies) between Dej and Râmnicu Vâlcea has been calculated here.
Air line (approximately)
231 kilometers
125 nautical miles