The calculated distance (air line) between Banatski Karlovac and Kragujevac is approximately 72 miles respectively 115 kilometers.
By car or train, the actual journey to Kragujevac is certainly longer, as only the direct route (as the crow flies) between Banatski Karlovac and Kragujevac has been calculated here.
Air line (approximately)
115 kilometers
62 nautical miles