The calculated distance (air line) between Lukhovka and Nizhniy Novgorod is approximately 159 miles respectively 255 kilometers.
By car or train, the actual journey to Nizhniy Novgorod is certainly longer, as only the direct route (as the crow flies) between Lukhovka and Nizhniy Novgorod has been calculated here.
Air line (approximately)
255 kilometers
138 nautical miles