The calculated distance (air line) between Sargodha and Dera Ghazi Khan is approximately 185 miles respectively 298 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 Sargodha and Dera Ghazi Khan has been calculated here.
Air line (approximately)
298 kilometers
161 nautical miles