The calculated distance (air line) between Torbat-e Ḩeydarīyeh and Kāshmar is approximately 43 miles respectively 69 kilometers.
By car or train, the actual journey to Kāshmar is certainly longer, as only the direct route (as the crow flies) between Torbat-e Ḩeydarīyeh and Kāshmar has been calculated here.
Air line (approximately)
69 kilometers
37 nautical miles