The calculated distance (air line) between Naberezhnyye Chelny and Kambarka is approximately 79 miles respectively 127 kilometers.
By car or train, the actual journey to Kambarka is certainly longer, as only the direct route (as the crow flies) between Naberezhnyye Chelny and Kambarka has been calculated here.
Air line (approximately)
127 kilometers
68 nautical miles