The calculated distance (air line) between Rahim Yar Khan and Dera Ghazi Khan is approximately 114 miles respectively 184 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 Rahim Yar Khan and Dera Ghazi Khan has been calculated here.
Air line (approximately)
184 kilometers
99 nautical miles