The calculated distance (air line) between Naberezhnyye Chelny and Bugulma is approximately 83 miles respectively 134 kilometers.
By car or train, the actual journey to Bugulma is certainly longer, as only the direct route (as the crow flies) between Naberezhnyye Chelny and Bugulma has been calculated here.
Air line (approximately)
134 kilometers
72 nautical miles