The calculated distance (air line) between Strážnice and Jablonec nad Nisou is approximately 158 miles respectively 255 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 Strážnice and Jablonec nad Nisou has been calculated here.
Air line (approximately)
255 kilometers
137 nautical miles