The calculated distance (air line) between Konstantynów Łódzki and Częstochowa is approximately 66 miles respectively 107 kilometers.
By car or train, the actual journey to Częstochowa is certainly longer, as only the direct route (as the crow flies) between Konstantynów Łódzki and Częstochowa has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles