The calculated distance (air line) between Destrnik and Zagorje ob Savi is approximately 49 miles respectively 79 kilometers.
By car or train, the actual journey to Zagorje ob Savi is certainly longer, as only the direct route (as the crow flies) between Destrnik and Zagorje ob Savi has been calculated here.
Air line (approximately)
79 kilometers
42 nautical miles