The calculated distance (air line) between Mian Sahib and Rahim Yar Khan is approximately 103 miles respectively 165 kilometers.
By car or train, the actual journey to Rahim Yar Khan is certainly longer, as only the direct route (as the crow flies) between Mian Sahib and Rahim Yar Khan has been calculated here.
Air line (approximately)
165 kilometers
89 nautical miles