The calculated distance (air line) between Kamienna Góra and Bydgoszcz is approximately 182 miles respectively 293 kilometers.
By car or train, the actual journey to Bydgoszcz is certainly longer, as only the direct route (as the crow flies) between Kamienna Góra and Bydgoszcz has been calculated here.
Air line (approximately)
293 kilometers
158 nautical miles