The calculated distance (air line) between Puchezh and Nizhniy Novgorod is approximately 55 miles respectively 88 kilometers.
By car or train, the actual journey to Nizhniy Novgorod is certainly longer, as only the direct route (as the crow flies) between Puchezh and Nizhniy Novgorod has been calculated here.
Air line (approximately)
88 kilometers
48 nautical miles