The calculated distance (air line) between Kuhsān and Qala i Naw is approximately 112 miles respectively 180 kilometers.
By car or train, the actual journey to Qala i Naw is certainly longer, as only the direct route (as the crow flies) between Kuhsān and Qala i Naw has been calculated here.
Air line (approximately)
180 kilometers
97 nautical miles