The calculated distance (air line) between Józsefváros and Salgótarján is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Salgótarján is certainly longer, as only the direct route (as the crow flies) between Józsefváros and Salgótarján has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles