The calculated distance (air line) between Piwniczna-Zdrój and Ruda Śląska is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to Ruda Śląska is certainly longer, as only the direct route (as the crow flies) between Piwniczna-Zdrój and Ruda Śląska has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles