The calculated distance (air line) between Torbat-e Jām and Kuhsān is approximately 52 miles respectively 84 kilometers.
By car or train, the actual journey to Kuhsān is certainly longer, as only the direct route (as the crow flies) between Torbat-e Jām and Kuhsān has been calculated here.
Air line (approximately)
84 kilometers
45 nautical miles