The calculated distance (air line) between Misratah and Qaşr Bin Ghashīr is approximately 113 miles respectively 182 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 Misratah and Qaşr Bin Ghashīr has been calculated here.
Air line (approximately)
182 kilometers
98 nautical miles