The calculated distance (air line) between Povolzhskiy and Chelno-Vershiny is approximately 79 miles respectively 126 kilometers.
By car or train, the actual journey to Chelno-Vershiny is certainly longer, as only the direct route (as the crow flies) between Povolzhskiy and Chelno-Vershiny has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles