The calculated distance (air line) between Bandar-e Anzalī and Khalkhāl is approximately 52 miles respectively 83 kilometers.
By car or train, the actual journey to Khalkhāl is certainly longer, as only the direct route (as the crow flies) between Bandar-e Anzalī and Khalkhāl has been calculated here.
Air line (approximately)
83 kilometers
45 nautical miles