The calculated distance (air line) between Nowy Dwór Mazowiecki and Częstochowa is approximately 132 miles respectively 212 kilometers.
By car or train, the actual journey to Częstochowa is certainly longer, as only the direct route (as the crow flies) between Nowy Dwór Mazowiecki and Częstochowa has been calculated here.
Air line (approximately)
212 kilometers
115 nautical miles