The calculated distance (air line) between Radziejów and Ruda Śląska is approximately 164 miles respectively 264 kilometers.
By car or train, the actual journey to Ruda Śląska is certainly longer, as only the direct route (as the crow flies) between Radziejów and Ruda Śląska has been calculated here.
Air line (approximately)
264 kilometers
143 nautical miles