The calculated distance (air line) between Ar Rām wa Ḑāḩiyat al Barīd and Dayr al Balaḩ is approximately 60 miles respectively 97 kilometers.
By car or train, the actual journey to Dayr al Balaḩ is certainly longer, as only the direct route (as the crow flies) between Ar Rām wa Ḑāḩiyat al Barīd and Dayr al Balaḩ has been calculated here.
Air line (approximately)
97 kilometers
52 nautical miles