The calculated distance (air line) between Tuzha and Nizhniy Novgorod is approximately 172 miles respectively 277 kilometers.
By car or train, the actual journey to Nizhniy Novgorod is certainly longer, as only the direct route (as the crow flies) between Tuzha and Nizhniy Novgorod has been calculated here.
Air line (approximately)
277 kilometers
150 nautical miles