The calculated distance (air line) between Ahvaz and Ar Rumaythīyah is approximately 143 miles respectively 231 kilometers.
By car or train, the actual journey to Ar Rumaythīyah is certainly longer, as only the direct route (as the crow flies) between Ahvaz and Ar Rumaythīyah has been calculated here.
Air line (approximately)
231 kilometers
125 nautical miles