The calculated distance (air line) between Măstăcani and Râmnicu Vâlcea is approximately 184 miles respectively 296 kilometers.
By car or train, the actual journey to Râmnicu Vâlcea is certainly longer, as only the direct route (as the crow flies) between Măstăcani and Râmnicu Vâlcea has been calculated here.
Air line (approximately)
296 kilometers
160 nautical miles