The calculated distance (air line) between Roznov and Râmnicu Vâlcea is approximately 158 miles respectively 254 kilometers.
By car or train, the actual journey to Râmnicu Vâlcea is certainly longer, as only the direct route (as the crow flies) between Roznov and Râmnicu Vâlcea has been calculated here.
Air line (approximately)
254 kilometers
137 nautical miles