The calculated distance (air line) between Tripoli and Qaşr Bin Ghashīr is approximately 14 miles respectively 23 kilometers.
By car or train, the actual journey to Qaşr Bin Ghashīr is certainly longer, as only the direct route (as the crow flies) between Tripoli and Qaşr Bin Ghashīr has been calculated here.
Air line (approximately)
23 kilometers
12 nautical miles