The calculated distance (air line) between Dera Ghazi Khan and Zahir Pir is approximately 85 miles respectively 138 kilometers.
By car or train, the actual journey to Zahir Pir is certainly longer, as only the direct route (as the crow flies) between Dera Ghazi Khan and Zahir Pir has been calculated here.
Air line (approximately)
138 kilometers
74 nautical miles