The calculated distance (air line) between Dār Kulayb and At Tūbī is approximately 46 miles respectively 75 kilometers.
By car or train, the actual journey to At Tūbī is certainly longer, as only the direct route (as the crow flies) between Dār Kulayb and At Tūbī has been calculated here.
Air line (approximately)
75 kilometers
40 nautical miles