The calculated distance (air line) between Aḑ Ḑāli‘ and Al Maḩwīt is approximately 146 miles respectively 235 kilometers.
By car or train, the actual journey to Al Maḩwīt is certainly longer, as only the direct route (as the crow flies) between Aḑ Ḑāli‘ and Al Maḩwīt has been calculated here.