The calculated distance (air line) between Ivanić-Grad and Slavonski Brod is approximately 87 miles respectively 140 kilometers.
By car or train, the actual journey to Slavonski Brod is certainly longer, as only the direct route (as the crow flies) between Ivanić-Grad and Slavonski Brod has been calculated here.
Air line (approximately)
140 kilometers
76 nautical miles