The calculated distance (air line) between Zaprešić and Slavonski Brod is approximately 117 miles respectively 189 kilometers.
By car or train, the actual journey to Slavonski Brod is certainly longer, as only the direct route (as the crow flies) between Zaprešić and Slavonski Brod has been calculated here.
Air line (approximately)
189 kilometers
102 nautical miles