The calculated distance (air line) between Rāja Sānsi and Khem Karan is approximately 42 miles respectively 68 kilometers.
By car or train, the actual journey to Khem Karan is certainly longer, as only the direct route (as the crow flies) between Rāja Sānsi and Khem Karan has been calculated here.
Air line (approximately)
68 kilometers
37 nautical miles