The calculated distance (air line) between Pir Mahal and Dera Ghazi Khan is approximately 118 miles respectively 190 kilometers.
By car or train, the actual journey to Dera Ghazi Khan is certainly longer, as only the direct route (as the crow flies) between Pir Mahal and Dera Ghazi Khan has been calculated here.
Air line (approximately)
190 kilometers
102 nautical miles