The calculated distance (air line) between Poznań and Jastrzębie Zdrój is approximately 184 miles respectively 296 kilometers.
By car or train, the actual journey to Jastrzębie Zdrój is certainly longer, as only the direct route (as the crow flies) between Poznań and Jastrzębie Zdrój has been calculated here.
Air line (approximately)
296 kilometers
160 nautical miles