The calculated distance (air line) between Kielce and Piotrków Trybunalski is approximately 55 miles respectively 88 kilometers.
By car or train, the actual journey to Piotrków Trybunalski is certainly longer, as only the direct route (as the crow flies) between Kielce and Piotrków Trybunalski has been calculated here.
Air line (approximately)
88 kilometers
47 nautical miles