The calculated distance (air line) between Rejon ulicy Klęczkowskiej and Kielce is approximately 157 miles respectively 253 kilometers.
By car or train, the actual journey to Kielce is certainly longer, as only the direct route (as the crow flies) between Rejon ulicy Klęczkowskiej and Kielce has been calculated here.
Air line (approximately)
253 kilometers
137 nautical miles