The calculated distance (air line) between Nizhniy Novgorod and Novocheboksarsk is approximately 134 miles respectively 216 kilometers.
By car or train, the actual journey to Novocheboksarsk is certainly longer, as only the direct route (as the crow flies) between Nizhniy Novgorod and Novocheboksarsk has been calculated here.
Air line (approximately)
216 kilometers
117 nautical miles