The calculated distance (air line) between Malaya Purga and Nizhnekamsk is approximately 78 miles respectively 126 kilometers.
By car or train, the actual journey to Nizhnekamsk is certainly longer, as only the direct route (as the crow flies) between Malaya Purga and Nizhnekamsk has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles