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