The calculated distance (air line) between Rovinj and Cervignano del Friuli is approximately 53 miles respectively 85 kilometers.
By car or train, the actual journey to Cervignano del Friuli is certainly longer, as only the direct route (as the crow flies) between Rovinj and Cervignano del Friuli has been calculated here.
Air line (approximately)
85 kilometers
46 nautical miles