The calculated distance (air line) between Miasteczko Śląskie and Kielce is approximately 78 miles respectively 126 kilometers.
By car or train, the actual journey to Kielce is certainly longer, as only the direct route (as the crow flies) between Miasteczko Śląskie and Kielce has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles