The calculated distance (air line) between Pruszcz Gdański and Śródmieście is approximately 172 miles respectively 276 kilometers.
By car or train, the actual journey to Śródmieście is certainly longer, as only the direct route (as the crow flies) between Pruszcz Gdański and Śródmieście has been calculated here.
Air line (approximately)
276 kilometers
149 nautical miles