The calculated distance (air line) between Al Ḩazm and Aḑ Ḑāli‘ is approximately 171 miles respectively 275 kilometers.
By car or train, the actual journey to Aḑ Ḑāli‘ is certainly longer, as only the direct route (as the crow flies) between Al Ḩazm and Aḑ Ḑāli‘ has been calculated here.