The calculated distance (air line) between Cheboksary and Nizhniye Vyazovyye is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Nizhniye Vyazovyye is certainly longer, as only the direct route (as the crow flies) between Cheboksary and Nizhniye Vyazovyye has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles