The calculated distance (air line) between Zgornja Hajdina and Slovenj Gradec is approximately 37 miles respectively 59 kilometers.
By car or train, the actual journey to Slovenj Gradec is certainly longer, as only the direct route (as the crow flies) between Zgornja Hajdina and Slovenj Gradec has been calculated here.
Air line (approximately)
59 kilometers
32 nautical miles