The calculated distance (air line) between Damanhur and Kafr ad Dawwār is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Kafr ad Dawwār is certainly longer, as only the direct route (as the crow flies) between Damanhur and Kafr ad Dawwār has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles