The calculated distance (air line) between Čačak and Smederevska Palanka is approximately 45 miles respectively 72 kilometers.
By car or train, the actual journey to Smederevska Palanka is certainly longer, as only the direct route (as the crow flies) between Čačak and Smederevska Palanka has been calculated here.
Air line (approximately)
72 kilometers
39 nautical miles