The calculated distance (air line) between Saḩam al Kaffārāt and Ar Ramthā is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Ar Ramthā is certainly longer, as only the direct route (as the crow flies) between Saḩam al Kaffārāt and Ar Ramthā has been calculated here.
Air line (approximately)
27 kilometers
14 nautical miles