The calculated distance (air line) between Naqadeh and Oshnavīyeh is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Oshnavīyeh is certainly longer, as only the direct route (as the crow flies) between Naqadeh and Oshnavīyeh has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles