The calculated distance (air line) between Sremska Kamenica and Zrenjanin is approximately 28 miles respectively 46 kilometers.
By car or train, the actual journey to Zrenjanin is certainly longer, as only the direct route (as the crow flies) between Sremska Kamenica and Zrenjanin has been calculated here.
Air line (approximately)
46 kilometers
25 nautical miles