The calculated distance (air line) between Rejon placu Grunwaldzkiego and Śródmieście is approximately 186 miles respectively 299 kilometers.
By car or train, the actual journey to Śródmieście is certainly longer, as only the direct route (as the crow flies) between Rejon placu Grunwaldzkiego and Śródmieście has been calculated here.
Air line (approximately)
299 kilometers
162 nautical miles