The calculated distance (air line) between Al Ḩadd and Madīnat Ḩamad is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Madīnat Ḩamad is certainly longer, as only the direct route (as the crow flies) between Al Ḩadd and Madīnat Ḩamad has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles