The calculated distance (air line) between Povolzhskiy and Novaya Mayna is approximately 39 miles respectively 63 kilometers.
By car or train, the actual journey to Novaya Mayna is certainly longer, as only the direct route (as the crow flies) between Povolzhskiy and Novaya Mayna has been calculated here.
Air line (approximately)
63 kilometers
34 nautical miles