The calculated distance (air line) between Łęczyca and Ruda Śląska is approximately 125 miles respectively 202 kilometers.
By car or train, the actual journey to Ruda Śląska is certainly longer, as only the direct route (as the crow flies) between Łęczyca and Ruda Śląska has been calculated here.
Air line (approximately)
202 kilometers
109 nautical miles