The calculated distance (air line) between Bielsko-Biala and Jelenia Góra is approximately 164 miles respectively 264 kilometers.
By car or train, the actual journey to Jelenia Góra is certainly longer, as only the direct route (as the crow flies) between Bielsko-Biala and Jelenia Góra has been calculated here.
Air line (approximately)
264 kilometers
142 nautical miles