The calculated distance (air line) between Międzyrzec Podlaski and Śródmieście is approximately 77 miles respectively 124 kilometers.
By car or train, the actual journey to Śródmieście is certainly longer, as only the direct route (as the crow flies) between Międzyrzec Podlaski and Śródmieście has been calculated here.
Air line (approximately)
124 kilometers
67 nautical miles