The calculated distance (air line) between Sosnovskoye and Nizhniy Novgorod is approximately 48 miles respectively 78 kilometers.
By car or train, the actual journey to Nizhniy Novgorod is certainly longer, as only the direct route (as the crow flies) between Sosnovskoye and Nizhniy Novgorod has been calculated here.
Air line (approximately)
78 kilometers
42 nautical miles