The calculated distance (air line) between Samannūd and Kawm Ḩamādah is approximately 35 miles respectively 56 kilometers.
By car or train, the actual journey to Kawm Ḩamādah is certainly longer, as only the direct route (as the crow flies) between Samannūd and Kawm Ḩamādah has been calculated here.
Air line (approximately)
56 kilometers
30 nautical miles