The calculated distance (air line) between As Sulaymānīyah and Ṟuwandiz is approximately 88 miles respectively 142 kilometers.
By car or train, the actual journey to Ṟuwandiz is certainly longer, as only the direct route (as the crow flies) between As Sulaymānīyah and Ṟuwandiz has been calculated here.
Air line (approximately)
142 kilometers
77 nautical miles