The calculated distance (air line) between Naberezhnyye Chelny and Sosnovka is approximately 57 miles respectively 92 kilometers.
By car or train, the actual journey to Sosnovka is certainly longer, as only the direct route (as the crow flies) between Naberezhnyye Chelny and Sosnovka has been calculated here.
Air line (approximately)
92 kilometers
49 nautical miles