The calculated distance (air line) between Salgótarján and Angyalföld is approximately 51 miles respectively 82 kilometers.
By car or train, the actual journey to Angyalföld is certainly longer, as only the direct route (as the crow flies) between Salgótarján and Angyalföld has been calculated here.
Air line (approximately)
82 kilometers
44 nautical miles