The calculated distance (air line) between Strzelce Opolskie and Śródmieście is approximately 167 miles respectively 268 kilometers.
By car or train, the actual journey to Śródmieście is certainly longer, as only the direct route (as the crow flies) between Strzelce Opolskie and Śródmieście has been calculated here.
Air line (approximately)
268 kilometers
145 nautical miles