The calculated distance (air line) between Kovilj and Smederevska Palanka is approximately 76 miles respectively 122 kilometers.
By car or train, the actual journey to Smederevska Palanka is certainly longer, as only the direct route (as the crow flies) between Kovilj and Smederevska Palanka has been calculated here.
Air line (approximately)
122 kilometers
66 nautical miles