The calculated distance (air line) between Janów Lubelski and Śródmieście is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Śródmieście is certainly longer, as only the direct route (as the crow flies) between Janów Lubelski and Śródmieście has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles