The calculated distance (air line) between Ash Shāmīyah and Nahiyat Ghammas is approximately 15 miles respectively 24 kilometers.
By car or train, the actual journey to Nahiyat Ghammas is certainly longer, as only the direct route (as the crow flies) between Ash Shāmīyah and Nahiyat Ghammas has been calculated here.
Air line (approximately)
24 kilometers
13 nautical miles