The calculated distance (air line) between Lazarevac and Smederevska Palanka is approximately 35 miles respectively 56 kilometers.
By car or train, the actual journey to Smederevska Palanka is certainly longer, as only the direct route (as the crow flies) between Lazarevac and Smederevska Palanka has been calculated here.
Air line (approximately)
56 kilometers
30 nautical miles