The calculated distance (air line) between Bismil and Ad Darbāsīyah is approximately 53 miles respectively 86 kilometers.
By car or train, the actual journey to Ad Darbāsīyah is certainly longer, as only the direct route (as the crow flies) between Bismil and Ad Darbāsīyah has been calculated here.
Air line (approximately)
86 kilometers
46 nautical miles