The calculated distance (air line) between Kideksha and Nizhniy Novgorod is approximately 133 miles respectively 215 kilometers.
By car or train, the actual journey to Nizhniy Novgorod is certainly longer, as only the direct route (as the crow flies) between Kideksha and Nizhniy Novgorod has been calculated here.
Air line (approximately)
215 kilometers
116 nautical miles