The calculated distance (air line) between Lublin and Piotrków Trybunalski is approximately 124 miles respectively 200 kilometers.
By car or train, the actual journey to Piotrków Trybunalski is certainly longer, as only the direct route (as the crow flies) between Lublin and Piotrków Trybunalski has been calculated here.
Air line (approximately)
200 kilometers
108 nautical miles