The calculated distance (air line) between Ar Rumaythah and Ad Dīwānīyah is approximately 36 miles respectively 58 kilometers.
By car or train, the actual journey to Ad Dīwānīyah is certainly longer, as only the direct route (as the crow flies) between Ar Rumaythah and Ad Dīwānīyah has been calculated here.
Air line (approximately)
58 kilometers
31 nautical miles