The calculated distance (air line) between Darreh Shahr and Javānrūd is approximately 124 miles respectively 200 kilometers.
By car or train, the actual journey to Javānrūd is certainly longer, as only the direct route (as the crow flies) between Darreh Shahr and Javānrūd has been calculated here.
Air line (approximately)
200 kilometers
108 nautical miles