The calculated distance (air line) between Al Qawāsim and Qaşr Bin Ghashīr is approximately 35 miles respectively 57 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 Al Qawāsim and Qaşr Bin Ghashīr has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles