The calculated distance (air line) between Mokotów and Piekary Śląskie is approximately 155 miles respectively 249 kilometers.
By car or train, the actual journey to Piekary Śląskie is certainly longer, as only the direct route (as the crow flies) between Mokotów and Piekary Śląskie has been calculated here.
Air line (approximately)
249 kilometers
135 nautical miles