The calculated distance (air line) between Nowy Dwór Mazowiecki and Śródmieście is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Śródmieście is certainly longer, as only the direct route (as the crow flies) between Nowy Dwór Mazowiecki and Śródmieście has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles