The calculated distance (air line) between Karbala and Ad Dīwānīyah is approximately 68 miles respectively 109 kilometers.
By car or train, the actual journey to Ad Dīwānīyah is certainly longer, as only the direct route (as the crow flies) between Karbala and Ad Dīwānīyah has been calculated here.
Air line (approximately)
109 kilometers
59 nautical miles