The calculated distance (air line) between Ar Rām wa Ḑāḩiyat al Barīd and Dūrā is approximately 27 miles respectively 43 kilometers.
By car or train, the actual journey to Dūrā is certainly longer, as only the direct route (as the crow flies) between Ar Rām wa Ḑāḩiyat al Barīd and Dūrā has been calculated here.
Air line (approximately)
43 kilometers
23 nautical miles