The calculated distance (air line) between Piotrków Kujawski and Kielce is approximately 148 miles respectively 238 kilometers.
By car or train, the actual journey to Kielce is certainly longer, as only the direct route (as the crow flies) between Piotrków Kujawski and Kielce has been calculated here.
Air line (approximately)
238 kilometers
128 nautical miles