The calculated distance (air line) between Debeljača and Sremska Mitrovica is approximately 49 miles respectively 78 kilometers.
By car or train, the actual journey to Sremska Mitrovica is certainly longer, as only the direct route (as the crow flies) between Debeljača and Sremska Mitrovica has been calculated here.
Air line (approximately)
78 kilometers
42 nautical miles