The calculated distance (air line) between Naberezhnyye Chelny and Vyatskiye Polyany is approximately 62 miles respectively 101 kilometers.
By car or train, the actual journey to Vyatskiye Polyany is certainly longer, as only the direct route (as the crow flies) between Naberezhnyye Chelny and Vyatskiye Polyany has been calculated here.
Air line (approximately)
101 kilometers
54 nautical miles