The calculated distance (air line) between Janowiec Wielkopolski and Praga Południe is approximately 155 miles respectively 250 kilometers.
By car or train, the actual journey to Praga Południe is certainly longer, as only the direct route (as the crow flies) between Janowiec Wielkopolski and Praga Południe has been calculated here.
Air line (approximately)
250 kilometers
135 nautical miles