The calculated distance (air line) between Krynica-Zdrój and Gliwice is approximately 118 miles respectively 190 kilometers.
By car or train, the actual journey to Gliwice is certainly longer, as only the direct route (as the crow flies) between Krynica-Zdrój and Gliwice has been calculated here.
Air line (approximately)
190 kilometers
103 nautical miles