The calculated distance (air line) between Železný Brod and Jablonec nad Nisou is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Jablonec nad Nisou is certainly longer, as only the direct route (as the crow flies) between Železný Brod and Jablonec nad Nisou has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles