The calculated distance (air line) between Ad Dīwānīyah and Hīt is approximately 167 miles respectively 268 kilometers.
By car or train, the actual journey to Hīt is certainly longer, as only the direct route (as the crow flies) between Ad Dīwānīyah and Hīt has been calculated here.
Air line (approximately)
268 kilometers
145 nautical miles