The calculated distance (air line) between Zemer and Umm el Faḥm is approximately 13 miles respectively 20 kilometers.
By car or train, the actual journey to Umm el Faḥm is certainly longer, as only the direct route (as the crow flies) between Zemer and Umm el Faḥm has been calculated here.
Air line (approximately)
20 kilometers
11 nautical miles