The calculated distance (air line) between Markaz-e Ḩukūmat-e Darwēshān and Mastung is approximately 183 miles respectively 294 kilometers.
By car or train, the actual journey to Mastung is certainly longer, as only the direct route (as the crow flies) between Markaz-e Ḩukūmat-e Darwēshān and Mastung has been calculated here.
Air line (approximately)
294 kilometers
159 nautical miles