The calculated distance (air line) between Kragujevac and Smederevska Palanka is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Smederevska Palanka is certainly longer, as only the direct route (as the crow flies) between Kragujevac and Smederevska Palanka has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles