The calculated distance (air line) between Nova Mokošica and Slavonski Brod is approximately 172 miles respectively 277 kilometers.
By car or train, the actual journey to Slavonski Brod is certainly longer, as only the direct route (as the crow flies) between Nova Mokošica and Slavonski Brod has been calculated here.
Air line (approximately)
277 kilometers
149 nautical miles