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