The calculated distance (air line) between Serhetabat and Qal‘ah-ye Shahr is approximately 182 miles respectively 294 kilometers.
By car or train, the actual journey to Qal‘ah-ye Shahr is certainly longer, as only the direct route (as the crow flies) between Serhetabat and Qal‘ah-ye Shahr has been calculated here.
Air line (approximately)
294 kilometers
158 nautical miles