The calculated distance (air line) between Reshetikha and Nizhniy Novgorod is approximately 28 miles respectively 46 kilometers.
By car or train, the actual journey to Nizhniy Novgorod is certainly longer, as only the direct route (as the crow flies) between Reshetikha and Nizhniy Novgorod has been calculated here.
Air line (approximately)
46 kilometers
25 nautical miles