The calculated distance (air line) between Al Manqaf and Ar Rābiyah is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Ar Rābiyah is certainly longer, as only the direct route (as the crow flies) between Al Manqaf and Ar Rābiyah has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles