The calculated distance (air line) between Międzyrzec Podlaski and Mokotów is approximately 76 miles respectively 122 kilometers.
By car or train, the actual journey to Mokotów is certainly longer, as only the direct route (as the crow flies) between Międzyrzec Podlaski and Mokotów has been calculated here.
Air line (approximately)
122 kilometers
66 nautical miles