The calculated distance (air line) between Beli Manastir and Slavonski Brod is approximately 51 miles respectively 82 kilometers.
By car or train, the actual journey to Slavonski Brod is certainly longer, as only the direct route (as the crow flies) between Beli Manastir and Slavonski Brod has been calculated here.
Air line (approximately)
82 kilometers
44 nautical miles