The calculated distance (air line) between Nibong Tebal and Alor Setar is approximately 67 miles respectively 107 kilometers.
By car or train, the actual journey to Alor Setar is certainly longer, as only the direct route (as the crow flies) between Nibong Tebal and Alor Setar has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles