The calculated distance (air line) between Piwniczna-Zdrój and Częstochowa is approximately 117 miles respectively 189 kilometers.
By car or train, the actual journey to Częstochowa is certainly longer, as only the direct route (as the crow flies) between Piwniczna-Zdrój and Częstochowa has been calculated here.
Air line (approximately)
189 kilometers
102 nautical miles