The calculated distance (air line) between Madīnat an Naşr and Al Qurayn is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to Al Qurayn is certainly longer, as only the direct route (as the crow flies) between Madīnat an Naşr and Al Qurayn has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles